How do they ride? Directly. It will let you know where the rear wheel is all the time, which isn't necessarily a good thing, but can be alleviated by lots of post, and a decent saddle.
How much abuse? depends on how much you give I suppose, but it seems solid enough to me, and I've thrown my around without thinking about it.
Can it handle some jumps, Yes, and DH, again Yep (without being silly about it, it's not a DH bike)
Yep they have an EBB, it's fine, nip it up and it's fine, mine creaks a bit after a year or so, when I can be arsed to go at it with an allen key, it'll stop.
Anything else? It's a cracking bike, I should've got one years ago