GENTLEMAN FARMER  FirstClass Client is not Shareware. It is freeware. It can only be used to connect to a FirstClass Server, which is a commercial product.  
(Version 9.126)

FORAGING FERRET  This client needs some serious work on GUI behaviour. For my conferencing needs all its features seem to work but I don't use email or instant message. What annoys me the most is that it won't remember window sizes and positions once they've been closed or when the program is quit. Please fix this! I waste so much time resizing windows when I could be reading messages. The whole program is also a bit sluggish which it shouldn't be as its not exactly Final Cut Pro.  
(Version 9.106)

JPALME  First Class has a very nice user interface. In particular, the possibillity to arrange your conferences on a desktop is very useful.

The main drawbacks is the incompetent e-mail interface. It does a lot of things wrong: (1) Changes the message-id when incoming messages are sent out again (2) Conveys information about what is a quote from a previous message in incorrect ways (2) Cannot handle HTML-formatted messages correctly (4) In general munges the message header of incoming mail when sent out to e-mail again.  
(Version 9.022)

THINKPENGUIN  I'll be the first to make you guys smile: version 8.3 is out. And it is this version that the FC's developers have realized their application painfully needed an interface update, so they updated it (although it still looks really cheap in my opinion). I'm not sure where you can pick the new version up - probably the FC website, or if MacUpdate "updates" itself that would be great.  
(Version 8.101)

GERBER  It's better that the Windows client... That's about all I can say for it.  
(Version 8.101)

ANONYMOUS  Just updated to 8.047 and was hoping a miracle had occurred. Still the same appalling GUI, still like a Classic app' (a bad one), still unfriendly to use, still doesn't conform to Apple standards...should I go on?

If this wasn't free with my university course, I'd be asking for a refund.

I've got to use this software for the next 4 or 5 years; beginning to hate the FC Mac development team!  
(Version 8.047)

ANONYMOUS  It seems to me that this is just an OS 9 port to OS X. The interface looks extremely dated, the icons are far too small, which necessitates the need to use "suggestions", aka tooltips on almost all icons.

The GUI is very, VERY unintuitive and simple things are difficult or impossible to do, e.g. changing the font and size for ALL windows without having to use Change View Properties in each window.

There are some great features, such as résumés, messaging, conferencing, uploads/downloads. It seems to be a one-stop shop. But it is truly let down by the clunky, dated, muddled interface. This thing needs a major overhaul and fast!  
(Version 8.043)

ANONYMOUS  The new OSX FirstClass Server 8 has lost the ability to connect via modem. After using the product for over a decade, Open Text Corp have lost me. There website is full of platitudes of supporting macs and yet they have fallen behind in this respect.  
(Version 8.005)

ANONYMOUS  great custom email client for my school, but still has a tiny but annoying problem.

its faster than it used to be, but it still has a persistant problem. it doesnt save the schools email server and corrupts the password if you try.

it reverts to "home.fc" and you have to manually select learnlink (in my case). when you do and select save, it says "password incorrect" when trying to connect and you have to retype.

the windows version will save the learnlink preference and autoconnect to learnlink for you.  
(Version 7.112)

ANONYMOUS  (sigh) FirstClass/Centrinity/OpenText still has a ways to go with their OS X version. It's crashy. It offers very strange error messages sometimes (they look like "^0^1" with an OK button and nothing else), and overall it is not that great. Maybe it's better suited for smaller environments (there are over 10,000 users here at the university), but as it is...if I had to pay to use this, I'd feel really cheated.  
(Version 7.107)