Yes!
It was the subject of an extensive feature in a certain glossy mountain bike magazine. http://www.singletrackworld.com/magarchive/issue-51/
Sheesh! I don’t know why we bother…
I bet you don’t buy the magazine because there’s nothing in it of interest to you, eh? 🙂
Er, anyway, it was a great trip. We did it in three days, staying at a bunkhouse one night and a B&B with campsite the next. You could wildcamp it, but if it pours with rain (as it did with us in May) then it’s a little more fun if you can at least dry your clothes.
I’d recommend taking a GPS, as it’s really badly marked and there are a few turnings you’ll definitely miss if you you’re not paying attention. The IMBA UK site has a .gpx download on it.
The first two days are easily doable on a ‘cross bike or similar, but there are a couple of descents on the last day where some bigger tyres might make things a little more fun.