Yeah I don't play RPG's (last one was Eternal Darkness on the cube if that counts) but this is a RPG meets Grand Theft Auto meets Left for Dead. Definitely not a mindless slasher. You really need to spend you money properly and scavenge then trade/sell. You even need to be intelligent about picking your fights. I'm only on Level 15 but if you blindly run into a horde you'll get destroyed in no time.
I think I'm going to keep it a few more days then take it back and see how much I miss it. I'm guessing it's going to take a long while to beat since the missions I'm doing now require covering huge distances and I'm maybe 25% through the game?