"So far, I love it!"4.5 starson by HolyJoe722
Pros: Compact, light weight, sharp looking, easy to operate, it's NOT a Window$ or Apple OS, links to Google account seamlessly, uses standard MicroUSB cable (not the proprietary Samsung like so many of their older phones)
Cons: Smaller screen than most, keyboard cramped (but also has touch keyboard)
Summary: So far, I'm really liking this phone. I've only had it 1 week and I've never owned an Android phone. My previous phone was a Samsung Propel Pro (Windows Mobile 6.x) and this new phone blows it away. The OS is fast and easy to navigate. There are so many free apps I don't see much of a need for the paid ones (although there are a few that are tempting!)
Battery life is decent when you download a power saving app (I use Juice Defender Free). The cool part about this Spring Smartphone: currently (May, 2011) they are waiving the Data Package for this phone, so you don't have to pay the extra monthly fee for an Android.
Once I've had more time to evaluate it, I'll repost, but for now, I don't have any serious complaints.
Giving it a 4.5 because of:
Camera is only 2.0 MP
Slower processor (although I haven't had problems)
Flimsy battery cover that's hard to remove
Battery saver app should be standard with the phone