I went in and exchanged my Galaxy Nexus last night for this. Extremely sad to let the G-Nex go since it IS the most pleasant phone to use that I have ever seen, but that battery just wasn't going to cut it.
So my thoughts are as follows:
Coming from using the Galaxy Nexus for a week and then using this one, a few things really stand out: the screen is atrocious by comparison (grainy and pixellated as well as washed out colors), it's not nearly as smooth or snappy, and I didn't realize just how much better ICS really is than Gingerbread until I went back to Gingerbread again, and I still cannot stand what Moto does with Android for their devices...
That all being said, I am absolutely happy with my decision. This phone feels like a much more well-built device than the Galaxy Nexus. It has just the right amount of heft to it without feeling heavy, and I actually really like the way it looks. While the screen may be terrible compared to the G-Nex, it's probably going to look just fine to most people as long as you aren't coming off of a week of using a phone that has arguably the best screen in the mobile world right now, and this is a definite improvement in performance over my old Droid 2. I also immediately noticed a difference in signal between this and the G-Nex. The Razr has consistently better signal reception, with significantly faster speeds. The difference is ridiculous. And that battery... Oh how I love that battery. This is what I have been longing for since the day I brought home my first Smartphone: with this phone, you have the luxury of being able to use it for whatever you like and can have confidence that the phone will last all day regardless. This is why I bought this phone, and I hope other phone manufacturers take notice. I will take performance hits, and even tolerate a thicker phone if it means I can rely on it all day to do whatever I want it to do.
Still at the end of the day, I can't help but wish I could have a Razr Maxx, with a Galaxy Nexus screen, running ICS. That would pretty much be the perfect phone. Given their strengths and weaknesses though, you can't go wrong with the Maxx.
Also, just in case anyone is wondering, I rooted it using the same methods as those for the regular Razr. I know that's probably a given, but just in case anyone wants absolute clarification, there you go.