SUGE JONZE  Finally a great full disk encryption application from a trusted name in security.... While I've used a little of everything in the past, the new full disk feature is perfect for a lazy like myself that wants to not think about securing my disk and just for it to happen. I wish it worked with BootCamp, but hey, it's the first release and has worked great for me -- meaning i don't even notice anything has changed at all except for I have a login screen to start the on-the-fly encryption when I first boot up.

Great release and great new feature. I've used and still use many open source encryption products, but when I'm encrypting every sector of my drive, I feel more comfortable doing so with a commercial product that has established QA processes and a dedicated dev team.

Thanks PGP. You kept us waiting a while, but it was worth it.  
(Version 9.9)

CERNIUK  Solid comprehensive encryption. With the right settings, this is an outstanding application but the company's support leaves something to be desired.

Since version 9 (or 8?) they have added the ability to use PGP's encryption for the email connections between the user's computer and the email server. In theory this is great if they prevent man-in-the-middle attacks. In practice, PGP seems to fail and flounder all over the place when attempting to take over the encryption task from your mail system. I have to turn this off to use PGP for email.

Second is the automagic email encryption itself. It looks to see if your recipients have PGP and will encrypt if so. This is all find an dandy but I don't want my emails encrypted most of the time. It increases the size and makes them incompatible with my iPhone when reading mail from the same accounts.

Fortunately they provide an unsupported but absolutely critical Mail.app plugin which puts buttons in Mail to selectively sign and encrypt email.

Finally, the new addition of Whole Disk Encryption is absolutely stellar. In some informal testing, PGP's encryption software (AES) appears to be significantly faster and more efficient than Apple's native encryption software (aka FileVault system). I recorded broadcast quality video to disk with no disruption to workflow using full disk encryption. Later I scrubbed back and forth trying to force latency in the video editor and could not get PGP to go higher than utilizing 0.2% of the processor. FileVault, under the same conditions, used as high as 2%, or 10 times more processor.

Lastly, PGP engineers have a very complex application but manage to provide and excellent Mac user experience. Their adherence to the Mac interface guidelines is even better than Apple in many cases.

Long story short, stability, functionality, user interface, performance are all superb (5). Sales support, complexity, and price could all use some work (-1). Overall 4/5  
(Version 9.9)

ZAPH  Works as advertised for me. It's a little complex to setup, but once that's done it's been stable for me. There are free alternatives, but my needs are meet well with PGP Desktop. Email, IM and disk/image encryption, all working well.  
(Version 9.5.3)

NON_PC  Free is better

http://macgpg.sourceforge.net/  
(Version 9.5.3)

RON WEST  After being a PGP licensed user for years...

When you initially make the purchase you get 30 days of “free tech support.” Following that, well get ready to pay an “arm and a leg!” When a update is released and you install it, you discover there are problems and you need support, there isn’t any; unless you again are willing to pay an “arm and a leg!” The support forums are useless!

I’m saddened to have to write this... but it is the truth. Since 1985 I’ve never come across any software with such poor Tech Support!  
(Version 9.0.6)

ROTTWEILER  NOT compatible with Tiger (OS X 10.4)!?!?!

How could that come as a surprice to the developers!

It's not that Apple has kept 10.4 a secret...Christ!  
(Version 9.0)

ANONYMOUS  Awesome, amazing, wonderful. Why should I spend money when I can instead use GPG + GPGMail plugin? Hmmmmm?  
(Version 9.0fc1)

PIRX  Version 9.8 runs perfectly on Snow Leopard for me (MBAir, SSDrive). If you want to upgrade/buy version 10.0, be prepared for this:

"Error

PGP products are not available in your region."

With big trara PGP announced that they have a sales damager for the Asia/Pacific region, sitting in Sydney. Receiving this error-message does not induce positive buying behaviour in AP customers.

No, I am not a resident of North Korea.  
(Version 10.0)

PYLE129  Current version is most definitely a beta. Boot disk encrypted fine and the WDE boot up works perfectly.....major problems with extra disks in your mac though. 10.0 is sketchy accepting passwords for other encrypted disks within the mac and when it does it fails to mount those disks. At least I'm able to decrypt my extra disks. I can't wait for an update.  
(Version 10.0)

GORDON142  Download seems to be for old version. Can't find any reference on company site to this version or way of getting it.  
(Version 10.0)