You haven't done that yet? That's a smart move, I think it would be a shame to ditch the GN w/out tossing the latest radio in that bowl of ice cream to seal the deal or get reacquainted.
I tried it for part of a day, but then almost exchanged it so I had to put it back to stock.
One thing that someone said in another thread (can't remember if it was here or in the Nexus Forum) that made a lot of sense to me was when you have a good camera, you're more inclined to use it more. When I had my iPhone, I used the camera A LOT. The Nexus not so much. I have a feeling with the Rezound I would use the camera a lot more.
But still, my biggest hold-up is what ICS Sense will look like. BMX posted that he has seen some early ROMs of the new Sense, so I sent him a tweet asking what it was like. (and specifically if it carries over some of ICS' new features, like folders, the widget menu, font, etc.)