Anyone on here ever use this wheel size? Picking up the new ATB with 650B this week. Excited to try it. I've ready many positive things about it not really being a compromise between 26 and 29 wheels, but truly being the best of both. The bike has a frame designed for this wheel size rather than a manufacturer's attempt at slapping some wheels on a 26 frame. Thoughts?

Tried it, liked it, but not as much as the 29er Specialized Epic FS, Which I just so happened to pick up in October, and sold the hardtail 650B. My 48 year old back just could not handle the pounding of Copper Harbor and Adventure Mine races. I gotta say, the new 29er FS bikes are incredible compared to the FS bikes I tried and did not care for in the late 90's. Very comfortable, very fast. My son had picked up a Jamis Dakar Expert 29er FS this year, and that thing sold me. Convert!