Blackberry to Android is a Night/Day change. Most people don't like change and won't give this phone a chance. Also it doesn't help that there seems to be a lot of defective units out there right now (However I'm sure nobody remember the trackball problems with the Tour right when it came out - which made the phone pretty much useless until you got it replaced, or the loose screen on the 1st Storms that rolled out - where the screens would literally just pop out of the phone, oh wait and wasn't there an issue with the trackpads on the 1st Bolds that rolled out???) and countless other problems that EVERY phone has right at launch time, some worse than others. Luckily I received a problem free Droid Pro. Mine got hot the first day because I was on it 24/7, not to mention the resyncing of all my apps/contacts/settings from my last Android device. I've literally never have owned a better phone. I didn't realize how much I had missed a good physical keyboard until I got used to this one, and now wow. I can pound out emails with the best of them. The keyboard/touch screen combo is awesome for me. I can navigate through things without thinking, much quicker than moving a little mouse around on the screen (Blackberry). You can't beat the Android browser, and I have become very accustom to having Flash on my phone.
Corporate email still needs work out of the box from what I'm reading. Luckily I use Google for Business, so everything syncs through GMail and works wonderfully (Yes it pushes!!) And if you're not behind a corporate server, if you just set your other email addresses to forward everything to your GMail account, push email works fine. I've heard nothing but good things on the app Touchdown which is a corporate email client that supposedly works great on the Android platform. It does cost $$$ though so I can see some people considering that a problem.
Battery Life. Yep, no way around it, if you're on your phone a lot, there's no way the standard battery is going to last you a day. It sucks, but I really think Motorola should have put a larger battery in this phone and the Droid 2. There still using the same battery from the Droid 1, which is a 600MHz powerhouse yes, but with the addition of the 1GHz processor with the D2 and DPro, a larger batter should have been incorporated, especially for the power business users. 2 options here, either carry a spare battery (my choice), or buy the extended battery. So far, I've heard almost nothing but good things from extended battery owners. (I still like knowing that I have a full battery in my back pocket whenever I need it..)
Overall, if a person comes to me and asked me to recommend them a phone, I would first have to ask, what do you want your phone to do? If the answer is only to keep in sync with my corporate email/calendar/tasks, check some things on the internet occasionally, and be able to make and receive phone calls; hey stay with Blackberry by all means. If your answer is; everything, well as the commercial says "Droid Does." I know that's a stretch, but Blackberry and Android are 2 totally different beasts, but no 2 people are alike either, so you're always going to have your hardcore diehard Blackberry fanatics, that think they might want to try something different, but then get scared of change and go back to what they know. Then you've got someone like me, I'm a gadget freak, and ex-blackberry fanatic, who simply knows the Android platform can do everything I want it to and more.
But that's the great thing about Verizon. If you don't like it, take it back within 30 days and get a Blackberry, but at least give it the 30 days, don't just get scared in a week and go running back.