I ride a shredtown at the park and the thing feels bomb proof, can take all the beatings from rails and kickers, but still looks and feels brand new. Not the case for the ronix phoenix I had before. But I can vouch for it on air tricks as well, I'd say you can always throw the fins on it, but if you need the fins (or channels, like with a whip) you're doing them wrong...
That being said the only other slingshot i've ridden is the hooke, for my boat board. I think it turned into the lyman? but good choice to go with slingshot, great company, awesome boards, and the made in the USA factor is a nice touch