Currently, I'm on the fence. I have a 2010 MBP that is far too slow for anything these days, and needs replaced. It's not my main machine, so I can wait it for a while as I decide what to do.
I run Windows, OSX (official and hackintosh), and Linux, so it's not like I'm going back to Windows full time. But, I'm equally disenchanted with all the other offerings from Dell, HP, etc. I can't help but think if Apple would have just brought these things out even $200 cheaper (or came standard with 16GB RAM / 512 HD), that we would all people completely (mostly) happy with the announcement. The CPU is fine; The GPU is fine; I don't plan on gaming. But, 8GB/256GB as a base for $1800 is a tough pill to swallow.