SWSoft gets a big F- for this release. Or at least, their marketing department does. I kept trying older and older games to see what would work, and here are the results, on a MacPro with 3GB memory and an ATI Radeon X1900 XT with 512MB VRAM:
Half-Life 2: Fail Screen doesn't completely update, unacceptable frame rate.
Civ 4 Warlords: Fail Eventually gets to main title screen, shows only the eyes and teeth of the animated character in the main menu, won't let me click on menu items.
Sam & Max Season One: Fail Section of screen cut off, frame rate too low to be playable.
The Longest Journey: Fail Section of screen cut off, no text displayed anywhere.
Fallout 2: Fail "Can't initialize input devices"
FreeCell: Fail Crashes only with Microsoft's standard error-reporting dialog box. That's right, FreeCell doesn't run.
I'm running Vista Premium. After testing all of these, I look in the release notes to see that Direct3D is only "supported" under XP, not Vista.
Listing Direct3D support as a major feature of version 3.0: Pass
Mentioning that Vista isn't supported BEFORE I pay money for the upgrade: Fail
Mentioning that it's XP-only ANYWHERE in the marketing text for version 3.0: Fail
Giving me a real list of features included in version 3.0 before charging me $40 for it and warning that time is going to run out if I don't act before buying: Fail
Making the list of compatible games available before release, or even mentioning that the game support is a small percentage of the games available: Fail
Advising people on the (not accessible from the main page) forums to try to circumvent other publishers' copy protection to get around compatibility issues: Double Plus Extra Fail
I'm confident they'll be able to fix the problems eventually, since the company's track record has to make significant improvements in the software very quickly. But this release was completely botched. And the marketing and support in particular have left a really bad taste in my mouth.