I’ve had one for nearly a year now and I love mine! Not sure I’d agree with it having long top tube, although I’m not stubby in the arms department – I’m 5’8 and have a 17.5″ frame and it’s fine for me.
I’m always impressed at how well it climbs – on rocky technical stuff it always grips really well and even stamping down hard on road tarmac climbs, there almost no suspension bob at all. Downhill it’s just as good, I’d even go so far as to say it feels nearly as good as my old Kona Coiler did – very confidence inspiring!
Downsides – hardly any, however I’ve been a bit dissapointed with the longevity of the Bontrager hubs. They were ‘smooth as’ all summer but then did a (very) wet Peaks ride and the front seized up completely (although I know Peak mud is notorious for trashing components!). Replaced the front bearings and then one mildly wet weeekend in Betws Y Coed and a wet ride at Cannock and they were on their way out again :-( Am thinking I might replace the front hub at some point with a Hope Pro 2 when I can afford it.
Don’t let that put you off though, it really is a great bike and you definately wouldn’t regret getting one :D