I've had my 15-22 for a couple years. Have shot several thousand rounds of CCI Blazer and Federal bulk pack ammo without a single malfunction. I picked up a couple 10 round magazines - didn't like the length of the 20 rounder. I put a Primary Arms red dot scope on it and find it to be quite accurate. A great little plinker in all respects and the operation and takedown is very similar to it's bigger brothers.
I wasn't keen on the polymer construction at first, but don't even notice it now.