KIWIBRI  I purchased this a while back and have been happy with it. Initially I thought the price was pricey as it converted to around $CAD30 - but the author has provided updates over the past couple years very often and the application does save me some time.

I use it mainly to add the CoverArt embedded to my mp3 files and to rename my mp3 files based on what my tags have in them.

Yes, it does not look the best front end (Especially on the Mac) when you are used to rich looking applications, but it seems to do its job well.   
(Version 3.4.4)

THESWEDE  Truly a great app.

It helped my extremely large

collection of Apple Lossless files

in perfect condition.  
(Version 3.4.2)

ELVIS_P  I bought Jaikoz with the hope of having a on-in-all program for tagging & renaming music. Unfortunately, the software turned out to be quite a disappointment. Starting wih the least important complaints, it's ulgy and painfully slow. But first and foremost:

the musicbrainz query often does not work at all.

What I mean by this is that many CDs are being perfectly recognized & tagged by iTunes within seconds while at the same time Jaikoz nearly hangs the computer for 2 minutes and comes out with nothing. And if it even does from time to time, the tracks from a single album are being treated separately and often one ends up in a total tag-hell.  
(Version 3.4.2)

LOUNGE DELUXE  I tried Jaikoz and had it look for missing tag info of a compilation cd containing 13 songs. My iTunes lib was empty but for this cd. I looked up the correct album title on Discogs first and entered this in the Album field for these songs, and then let Jaikoz try to add the missing tag info (titles, artists and track numbers). Besides Jaikoz only iTunes ran and Safari with just a gmail tab. The search made the temperature of my MBP rise to 90C(!) and all fans started to run at max rpm. The search took more than 5 minutes, and the result was nothing could be found (despite the Album title matching the one in Discogs). YMMV of course, but I was pretty disappointed and moved on.

BTW I also tried using Media Rage for adding missing tag info for this and other cd's but had no luck there either (the info that did got found made no sense at all).  
(Version 3.4.2)

ILFANCIULLOARDITO  Essential app to tag your music on Mac. You need it.  
(Version 3.3.4)

JUSTIN BRACKEN  I really wanted a piece of software to properly label the songs I had ripped awhile ago. My first mp3 players did not read the meta tags so when I ripped them there was not much point to label the song more than a quick label on the folder the file was in. Now with itunes and the iphone having album art and proper meta tags makes a big difference.

I tried tuneup, song genie, and song sergeant. Song sergeant from what I can tell does not do anything with identifying a song from acoustic fingerprint or acoustic id. tuneup and song genie look like good programs except they are ~$10 more per license.

As far as licensing jaikoz goes it was a snap. Even when you include the fact that I had a paypal account but had never used it purchasing anything in the mix licensing the software was a simple and quick. Yeah for instant gratification. You don't need to license it as the software will do 20 corrections per launch so going beyond that requires only a restart of the software but for $25 or what ever it cost the software is well worth the price. Heck breakfast was more than this, this morning! Plus this includes all updates if I remember correctly so thats a plus I do not think the others included that.

As far as features go this program has more than you probably know about, need, or want to use. It has automagic mode for those less picky about their audio collection and just want a proper label put on them with album art. To detailed mode where you can mess with the algorithms parameters used to choose the id3 tag. You can set it so that it chooses id3 tags which result in fewer separate albums. For instance if you have a song that was released on multiple albums like a hit album and the original album and also have other songs that are in a similar situation it can be set to tag the songs such that they are from the hit album so instead of 10 songs on 10 albums you have 10 songs on one album. It will even tell you what songs you are missing from the album. It does the duplicate search thing to althought I haven't messed with that.

The software was simple to use. Just add files from your disk and then tell it to automatically scan and correct. However the ui is not what I expect on a mac. Not to say that its bad but a user who is used to mainstream software will find it slightly less usable until they use it and get used to it. I think you will like the choices made once you are use to it. The user manual: http://www.jthink.net/jaikoz/jsp/help/osx/frames.html is great except the author either has english as second language or used a software translator so there are some word order problems.

As far as value, its cheaper than the competition I looked at, arguably has more features, and includes all updates. Plus free support by email. Enough said!

Stability, has not crashed yet.

My recommendation, buy it or at least review the manual before you buy something else.  
(Version 3.3.4)

THUNDER82  Jaikoz is the best tag editor out there. I have tried many others including SongGenie/Coverscout, and Jaikoz is still the software that I find myself using the most. It has been 100% stable for me, even when i throw a few hundred songs at it. Those mentioning that SongGenie & Coverscout are better obviously don't need their software to do much. Sure these other programs have a nice interface (honestly, much nicer than Jaikoz) but their functionality is SO limited. Given the price tag (especially compared to the Equinux equivalents) Jaikoz is awesome.

The only improvements I'd like to see, would be a more "fluid" interface for OSX users and better handling of song lyrics. Pulling lyrics from the web is awesome, but I don't feel I'm able to properly manipulate the lyrics field. Being able to create paragraphs and separate the chorus from the rest of the song is important to me. Also, it would be amazing if there were an option to automatically delete the web link that gets added to the beginning of the lyrics added to each track.

Overall, Jaikoz is extremely feature rich and very stable. I'm very happy with my purchase.  
(Version 3.2.2)

SUNCHASER21  Great app, except that on leopard 10,5.8 it seems that when i add or drop 30 files plus, MP3 files on the desktop icon, it ALWAYS CRASHES.. every single time..

then one problem bigger when I am editing about 20 files in one window and I do search and replace the name.. for example. Mike, with the name MIKEY.. it will replace most of the text but everytime i try it, it will always miss 1 -4 songs and leave them blank.. Would love for the dev. TO try to help me with this problem. have emailed them 2 times with no answer.. Hum bad support. i SURE HOPE NOT.. i would love for this app to work great..

ANYONE LOOKING FOR SOMETHING DIFFERENT.. try ..COVERSCOUT.. and IGENIE.. the best. but cost $$ And i already paid of this. but be sure to check them out. they are great.. as in perfect.. hope this helps someone.  
(Version 3.2.2)

AIKOUSHA  Looks impressive. Unfortuately doesn't fit my needs. I need software that will properly fill Catalog Numbers (since ALL my music is from CDs I own, and need to reference if the track is used), as well as allowing at least two custom fields which are not represented in the massive collection of tags in the prefs.

And, why, on a Dual 2.5Ghz, does it take nearly a minute to start the program?  
(Version 3.2.1)

BLAINE J. MARSH  This is a terrific program - and the price! Originally, I was looking to get tag info from the filenames of about 700 flac files. What I found was a program that had features that I hadn't even considered. I was able to make short work of tagging hundreds of files that had only the song title in the filename. I was able get the song titles into the tags, easily add artist, album title, artwork, download lyrics, identify songs with Musicbrainz - all on a batch of files. Editing includes copy, paste, search and replace, strip wide spaces, strip spaces, correct spelling, capitalization - just way too many things to list. I suggest that you download a trial copy for free that allows tagging up to 20 files in one session. I used it once and was convinced that it was a bargain at 15 British Pounds.  
(Version 3.1)