"FYI 2.2 rubber queens are a tight fit. "
This is worth bearing in mind before to shell out ££££. They come with 2.1 Nevs which are large for the size, 2.1 Maxxis ADv fit well too. 2.35 Maxxis HR just about fits in the rear. The tight point is the Y shaped brace in the rear triangle which makes it nice and stiff. If you want to run a balloon tyre on the rear, it could be a problem. But IMO, the rear sus is soooo good, you wont need a big soggy rear tyre!
Another limitation you should consider is the seatpost. Because of the neat pivot placing on the seat-tube, saddle droppage is limited. You can mostly solve this by carefully measuring and cutting your seatpost so that at your maximum height, you have the minimum of 4" of post in the tube. On a medium, that allows a useful 4" of droppage, but you wont be able to slam-it all the way down. [full droppage is one of the only real advantages of single-pivot designs, IMO – I'm prepared to be shot-down over that opinion!]
Some people complain that the headtube is long and with the supplied spacers, it makes the bars a little too free-ridey high. Most people end up either putting spacers on top of the stem to lower them a bit. Some chop the steerer down too. I see that MrSmith has flipped his stem – good idea.
And lets not forget the unfashionably long stock stems; I assume they fit these to deal with the short top-tube.
AFAIK, these oddities are what put people, including bike journos, off the bike. Wise old Steve Worland was the only journo who really "got" it – ridden slow, the bike is docile and friendly. But if you cane the pedals, it's completely mental. Somehow, the sum of all its oddities is a really great, versatile bike.