I didn't SBF either. I just wiped my data and cache via recovery and flashed. It runs flawlessly. Can't wait till we get root so I can get back free WiFi tether. Maybe some theming to "de'blue" the look a bit, nothing major.
Some more impressions,
besides how fast and nice it looks, it seems Moto has learned their lesson from the DX/D2. The contact list functions far better as far as I can tell. They gave us BACK the stock contact shortcut functionality, they free'd the home button, so that means quick desk users can have their app back, and you can compose text by long pressing the search button.
I am pretty damned impressed right now. It gives me a pretty nice glimpse of what the Bionic will be like