I've had my Skif for well over a year now and it's seen a few pellet tins of use, provided you use suitable ammunition and load it properly I've never had it jam up. The heavy trigger and questionable accuracy are down sides but emptying a 28 shot magazine is a rush, there's that when does it end?! feel to it, and as far as available co2 repeaters go the power is very decent.
I believe you can have it 'breathed upon' to smoothen the action out for a reasonable fee.