Mass Effect. Played the first one and couldn't get off Eden Prime cause of the shitty starting rifle and the OG game's idea of weapon stability.
Played Mass Effect 2 years later and beat it in a week, just absolutely loved the whole thing. Went back and played the first one after that to get the whole story. Then waited for ME3 to come out.
I still hate the way weapons work in the original ME1 but I pushed through, not surprised it turned people off of the game though.