JAMIE THOMPSON  I have used my share of ftp clients such as Interarchy but mostly open source software such as Cyberduck. Interarchy no longer supports Mac OS X 10.3.9 and is expensive. Of all the ftp programs I've tried, I highly recommend Yummy FTP. Yummy FTP is fast and stable on my Power Mac G4 450 MHz (AGP graphics) PowerPC computer and very fast and stable on newer Power Mac G5 systems. Yummy FTP is my ftp client of choice.  
(Version 1.7.2)

SOOTHE  YAY4MERLOT : I'm not sure why you decided to pick on Yummy. For example, does Flow or Forklift really bring anything new to FTP? No, and in fact as far as FTP is concerned those two 'new kids on the block' actually have far fewer features than Yummy, which has been around for literally years before those two by the way. Who, for example, was the first FTP client to bring Quick Look previews to the table. It was Yummy FTP. And as for reasons not to use Cyberduck, just look at PXQUIM's review below yours for one reason why. I'd MUCH rather spend a few bucks for an app that I can actually rely on. Your 'review' is not just 'a little harsh' it's totally unfounded.  
(Version 1.7.2)

YAY4MERLOT  My 2 star rating might seem harsh since Yummy FTP is a genuinely solid FTP app. The problem I have with it is that it brings nothing new to the table. Why would anyone pay $20 or more for an FTP app like Yummy FTP when apps like CyberDuck, which have a better interface and an equally powerful feature set, are completely free?

My hat goes off to the author for writing a nice app, but honestly, there is no need for another FTP client in the OS X market, and Yummy FTP doesn't bring anything new to the arena.  
(Version 1.7.2)

PXQUIM  Very fast at analyzing large hierarchies with hundreds of folders; it figures out that there is nothing to synchronize in a few seconds (if you allow "ls-R" in the preferences).

Uploads reliably without failing in the middle or skipping files.

Upgrading from Cyberduck, which somehow managed not to upload over 1000 files scattered over several folders.

Finally, the price is right for such an utility.  
(Version 1.7.2)

WFM  GREAT FTP software. The remote unpack feature saves so much time.

It is the fastest at analyzing large complex file hierarchies, and the fastest at transferring files.

I think the interface could use some more polish, but apart from that it is brilliant.

Much better, and more reliable than Transmit.

William  
(Version 1.7.2)

TOBIASWK  I just bought this piece of magnificent software.

Yummy FTP simply _is_ the best FTP application on OS X right now.  
(Version 1.7.1)

SACREDBLUE  Simply put, Yummy FTP is the greatest FTP software available for the Mac today. Beneath the application's simple yet elegant design lies a plethora of advanced features that any power user will appreciate.

Some might see a $25 price-tag as a tad steep, but considering Yummy FTP is still cheaper than its leading competitor, it's hard to complain.

The developer is incredibly attentive to his customers and certainly has a passion for his work. His support is top-notch and he's very receptive to suggestions from the community. Ultimately it was this sort of dedication that made me choose Yummy FTP over similar programs.  
(Version 1.7)

PROFESSOR_B  I use FTP and SFTP every day, and I've used all of the other major contenders in this category, on all platforms -- Linux, MacOS, and Windows. Out of all of the clients I've tried, Yummy FTP is my favorite by far on any platform. Not only does it give the fastest transfers, it has a good and intuitive user interface, it is fully-featured (including "wachers" and "aliases"), and the developer is extremely good about putting out new versions.

I recommend this program highly. Look no further for excellent FTP/SFTP/etc.  
(Version 1.7)

MAGENTIS  I think Yummy FTP is an overlooked gem. Admittedly, my needs are rather simple when it comes to FTP'ing. I just want something that is fast, reliable and laid out well. Yummy is all of those things.

When I would toss a couple thousand items into other clients, many choked up along the way. A few finished but seemed painfully slow. Yummy was always fast and complete.

Also, Yummy can sort items with Folders on top. I can't stand it any other way. So it was a real relief to have that option.

My only gripe is that the icons and buttons could use a refresh. They look a little dated and could use a better integration with the toolbars.

But overall I'm certainly impressed with Yummy.  
(Version 1.6.1)

JOEYBOOTZ  As a recent switcher from the "dark side" of windoze, I spent at least 2 weeks finding replacements for all my old software.

Overall it was a painless experience despite my colleague's uninformed warnings that there "just isn't any software for macs"

However, the one stumbling block came in the form of a good SFTP client to match the almighty WinSCP.

I tried them all. More than once. I made a little spreadsheet comparing the various pros and cons. The ONLY app that comes close to what I need as a professional webmaster who needs to update multiple websites on a daily basis is YummyFTP.

Transmit just doesn't cut it for the pro. Admittedly home users with a .mac account might be better served with Transmit.

Even after paying for Yummy, I decided to check out transmit to see if they've caught up with what I need. But Yummy just keeps getting better and leaves the others in the dust.

BTW - I give it a 4 out of 5 for features only because I'm comparing it to WinSCP. Which would get a 6. Transmit, a 3.  
(Version 1.6.1)