Never played mass effect before!!!!! What the hell dude? You missed out on one of the greatest games out there!

All joking aside, I was kind of in the same boat. I discovered ME a few years after the third game came out. It's one of my all-time favorite games and I wish I could experience it for the first time again! 1 is good, two is bat shit amazing, and three... Well there's lots of debate around 3 but I love it as much as 2. Have fun playing the series!