First of all, for reasons I don't fully understand, this game actually works slightly better on a Core Duo MacBook and a Core Duo MacBook with Intel GMA 950 graphics than on a Core 2 Duo MacBook Pro with a 128 MB Radeon Mobility X1600; on the MacBook, the intro video played perfectly; on the MacBook Pro, the intro video got garbled five seconds in.
On the whole the game is quite playable; don't change the graphic settings from the defaults through the main menu though, or the game will crash; the only reliable way I've found of changing the graphics settings is through the pre-game setup menu.
The main issue is that, in playing both the GOG version of this release and the original demo, the game will crash at random, occasional moments; in my opinion, they don't happen too often as to make the game unplayable, but they happen often enough that you should remember to save a little more often than usual.
Edit: On the same MacBook Pro I referred to above, the game doesn't work well when using the Direct 3D renderer; it works much better in software rendering at 640 x 480 resolution (it gets choppy on 1440 x 900), and when using that mode, the menu graphics and the intro movie were no longer garbled. D3D hardware rendering seems to work better on the GMA 950 on a MacBook, likely due to driver differences. The MBP and CD MB was running 10.6.1; the C2D MacBook was running 10.5.8.
Edit 2: On the MacBook, hardware rendering also yielded random crashes - for best stability, running in software rendering mode is also recommended.