so far been a great machine.
Bought the base model 2.3/8/256 in store on launch day. Couldn't be happier with it. Even running throw 4gb to parallels, I have no issues having all my school work and an IDE open/compiling.
People make a big stink about the 8 vs 16, but if you step back and think about it, 16 as an option is actually extremely generous. 8 is really above average still.