Well, not bad so far. Took about 20 minutes to install on the home Mac Pro, and freed up 12gb of something in the process. Wake on LAN is working, I can wake the Pro from the Air just by clicking it in the Finder now instead of having to run a WoL program in the terminal.

On the downside, I may have found my first incompatibility to deal with. I can't print to my HP Color Laserjet 2600n even after installing the Apple HP driver package. *edit* Seems Snow Leopard didn't include it by default, but the download from HP works even though it doesn't say 10.6.

Oh, and word of warning to iPhone developers, make sure to grab the Snow Leopard specific SDK. Until I installed that alongside XCode 3.2, my iPhone wasn't showing up in iTunes, probably due to the older Leopard iPhone SDK.