I've had mine for about 6 months, and it's become my regular ride, pretty much regardless of the weather. It's comfy enough on longer rides and as an XC race bike it's not that much of an "arse in the air and head down" ride – well certainly not as I've set mine up.
Clearances have coped with everything until last weekend where it got overwhelmed with some good old Derbyshire Somme mud.
Only niggles for me are the PITA headset in terms of limiting what you can fit, and I've had the R mech hanger come loose. That's it! I also have an alloy 19 and prefer the carbon. More info on the bike and build on the link.