I got the OTA update last night. I had rooted my phone with z4root, and I had no problems with the upgrade at all.

Things seem slightly (not hugely) faster, and the interface changes are nice. I used the navigation on the way over to my parents and the voice is now much better.

Overall, I like it.

One question, will Verizon start billing me if I use the built in 3G mobile hotspot? There was a warning about that when I started the app. So I chickened out. I was using Barnacle before the upgrade, haven't checked that yet. I'm watching football now