Borderlands. I love RPGs, and I love FPSs. So why doesn't it work? My entire experience was me getting pissed off that I couldn't kill basic enemies with decent guns until level 12 because of horrendous weopon accuracy and damage, and the fact that I had to keep going back and doing side quests, just so that I could continue with the story...
...which was bland, uninteresting, and just sapped my drive to continue. In the end, I was being bombarded by a thousand pterodactyls which I could neither avoid nor shoot down and kept killing me, and I stopped playing.
However, that's just my vent - I hear it's more fun in online co-op, but none of my friends play it. Maybe I'm just playing it wrong. Doesn't excuse the fact that I couldn't easily kill half a dozen raiders on the other side of some rocks from my game start point even after 4 hours of playing.