I too just made the move, to Gunnison, and have been STOKED thus far. Moving from Yosemite to CO, a state where everyone hates Texans and Californians, was a bit daunting at first. But seriously, it's (colo)rad(o). Enjoy the move!
Denver is underrated, it's clean and beautiful. The advantage Boulder has is the instant access to the foothills. You can just walk out of town onto hiking trails. Eldorado Springs is not a good destination for sport climbing but many of the best climbers I've met, I met there. It seems to be getting more polished as time goes on, or maybe its just hard to stay used to it.
Maybe. I didn't get the full layout in Denver reconnoitered by far. Nothing against CO but the reality of leaving the Sierra colluding with my wife and my job prospects as well as proximity to immediate family led to the decision. I am very happy with our decision and, while Reno was a necessary pit stop on the road, my biggest little birth town is not where I'd also like to end up buried.
Also, allowing Rong the full breadth of his hate for me by moving back to CA chuffs me.