Alright, I just got my Droid 2. I spent the last 2 hours rooting and customizing so it's back to the way my D1 was.
Here are my impressions after 2 hours with a D2 and almost 9 months with a D1:
The D2 is just as snappy and responsive as my OC'd D1, especially with LauncherPro.
Rooting is the same old business -- everything I could do with a rooted stock D1, I can also do with a D2 AND WiFi Tethering.
There's a bit more bloatware on the D2 than the D1 -- which is easily removed with the proper application of elbow grease and Root Explorer.
The keyboard is like the bubbly D1 keyboard. I'm still getting used to the slightly different positioning of the keys, but give me 24 hours and it wont matter anymore.
Overall, it's a nice step up. I dont feel like I'm missing anything from BB or UD by only having root. I used facelessuser's one-touch root, and it worked like a dream.
Battery life is TBD -- I have the extended battery, so I'm probably not the right person to ask. I started playing with the phone at 70%, and I'm down to 50 after 2 hours of downloading, rooting, general customizing, and software testing. I'm content.