So far I'm liking it a lot. I took it out for a proper ride on Saturday evening and I think once I get use to it, it'll really be good. I'm use to a 150mm full squish with a dropper post, so a hardtail without one is a bit different. My coworker has a 26" 456 and really loves it.
i'm running 135mm on mine right now and love the set-up. Although I have never taken my hardtail on a gravity oriented ride. I just feel more comfortable on my fully going down the hill.