I got a g2 on the day it came out, and got an amazing deal on it too, and I'm in love with it. The feel is great, the OS is extremely smooth, and in Chicago, the HSPA+ network is very very fast when compared to friends with 3G droids or even 4G epics from Sprint. I also should say that I really like the slide out keyboard as well.
As a disclaimer though, I am not an expert and this has been my only smartphone to date, so I was probably gonna fall in love no matter what. Before getting this phone like 3 weeks ago I only used my old ass phone for calls, texts and alarms.