Good evening, I have both the SK in .22 and a K1 in.25. Both have there strengths and shortcomings. I had many problems with the SK leaking at first, spent more time on the road than shooting it, I think I was a crash test dummy for the early gen. To AoA's credit the finally did fix the gun, whole new receiver block and has been trouble free. Both have a fixed magazine witch I thought would be tedious, it is but the up side is that it slows down your pellet usage witch will be astounding. The Sk's full auto is a gass to play with, it becomes a novelty after a while but flip the switch and it's a thrill. I prefer the double safety on the SK. If you have facial hair the Huben won't pull it as bad as the SK. I think the Huben is more pleasing to the eye unless you're into the tactical look. the trigger on the SK is spongey on semi auto, crisper on full auto, you'll learn to be able to single tap it, no adjustment. the trigger on the Huben is by the more pleasant trigger. The Huben is by far the quieter gun, rat fart quiet, put a moderator on it and you get mouse fart quiet. I run STO Falxs on both of them. The Huben is a little less money, still not cheap by any means. the fit and finish is comparable on both guns, better than good but not a fine piano. The Sk comes with an adiquate case, the Huben a cardboard box. My opinion, both wouldn't be the best choice for basement shooting. Whatever you choose have fun and be safe.