Tech Guy Leo Laporte says:
(Mac OS X 10.6) should be renamed “Snow JOB.” Cause he doesn’t see any difference and is more a “service pack” that should’ve been a free upgrade, not an insane $29. It also breaks a few applications. Sure, you have a little more hard drive space, but only because it doesn’t install all the unnecessary drivers.
Jeremy Horwitz, Editor-in-Chief of iLounge said, "multiple machines upgraded, all with serious, awful stability problems of some sort. Safari’s crashing. Photoshop’s crashing. Apps you didn’t even know could crash (like TextEdit) are crashing. They’re crashing when we save files, crashing randomly when we’re not saving files, and so on."
We do not support Snow Leopard at the SJSU Help Desk. The SPSS software we provide does not work with it. Unless you have a serious business need that requires Mac OS X 10.6 (and I know of
none very few for most users) there is no reason to switch yet.