I played this game on PC and it ran fantastically without any of the crashing or invisible units or funky spaced text—so all those issues are mac exclusive. The game itself is a lot of fun though, so it's worth getting on sale to see if it works on your computer. (Through my troubleshooting, it seems to have a better chance on iMacs than on Macbooks.)
There're a lot of fun tactical things to do (chest of rage ftw!), and many different kinds of units to work with (ancient bears are a personal favourite of mine).
This is a great game, and it's a shame that it wasn't ported well to mac.