First chance I've had to ride it came yesterday evening. Just a quick 10k on / off road dash, but it gave me the first impressions.
On road, a bit twitchy, not helped by slightly narrower bars than I'm used to. The forks are definitely more compliant than the P2's I have on the Yates, and I was taking a lot less of the knocks and bumps. It is also light and fast, despite the seat post being a touch low.
Off road: Tracks like it's on rails, and climbs like a mountain goat. More grip, on the same track, tyres and conditions than the Yates, which I put down to a slightly further back position, even when standing.
So, first impression: Light, fast with a good solid feel. Not as lively as the Yates, more like my Zaskar on a diet.
Into the woods at the weekend, for a real good try out
EDIT: Just to add the XTR / SRAM 9 speed combo works like a charm, and the Attack Shifters are excellent, worth every (discounted) penny.