My G2 has had very little problems. I experienced the random reboot/dropped calls thing for only a day (which I guess is no longer an issue anyway since the OTA rollout).
I get great signal in the LA area, 90% of the time I'm on HSPA+, other 10% is edge. I rarely ever get dropped calls, and now I should never get them with wifi calling.
I've never had a smartphone with a keyboard before, but now I can say that's a requirement for me now. Swype is cool and all, but I generally type in slang or use unorthodox words with my friends, so a keyboard is great for that. Not to mention that playing emulated games is infinitely greater using a keyboard as opposed to virtual controls on the touchscreen.
A lot of people like the G2 keyboard, but I honestly think it could have been designed better. The spacebar key should be bigger, while making the left side Caps key smaller (no reason for it to be that wide). Or even having a wide caps key is fine, but there's one on each side. I never use the one on the right side.
Also, there's no back button or home button on the keyboard. To me, this was another wtf-with-the-design. Normally, this wouldn't be a big deal except for the fact that the programmable keys cannot be programmed to do "back" or "home." There's a thread on these forums about this, and it seems like a solution hasn't been found for this yet.
My ideal keyboard would have been something like the one on the Epic. It has dedicated number keys, home, back, menu, search keys, as well as 4 arrow keys that can be used to move the homescreens left and right. While I realize you can't have all of these on the G2 due to it's smaller size, it wouldn't be so bad if some of the space wasted wasted on: a) quick-keys (you really don't need 3 of them, 2 at most), b) a second caps button and a second alt-key button.
TL;DR version: great phone, snappy, clean look, keyboard has a nice feel, but could have been designed to have more useful keys