Yes, and I used it for about 10 days because I was feeling so drained from MTBing. I took the Cube out again yesterday on some of the easiest trails and had fun, though.
The hardest stuff, I find, is the loose, piled up rock on descents (and climbs, but at least you're going slowly). The only way I've found to tackle it is to run the widest, softest tyres you can get away with, and stay off the front brake, but you still slew around all over the place, bouncing off the bigger bits as you go. It isn't the bumpiness of it so much as having practically no grip at all, and a hard landing if you lose the front wheel totally. I try to go at a reasonable speed so the wheels roll over it better, but I'm very much aware that a fall at that speed will be more painful than if I was going slower.
My OH went otb last weekend - nothing to do with rocks, although she did land on them; she was trying to do up her jacket, and grabbed the front brake with her other hand when she tugged the zip - and she's covered head to toe in bruises. Fortunately, she managed not to break anything. And I have told her it only takes a few seconds to stop and do up your jacket.