Freshman year of college I was lucky enough to get into the apartment style dorms - full kitchen, etc. and my roommate was pretty cool. He was an upperclassman and knew all the RA's, so I never got in trouble for drinking and such. Plus he had a black box, so we paid for basic cable only and got free porn and movie channels.
Sophomore year, I stayed in the same apartment style dorms and a friend moved in. No problems whatsoever. We lucked out and actually ended up with the same RA from the previous year, so all was great. Our room was pretty much the hang out room. I don't remember much from that year, though. It's all a blur.
After my sophomore year, a bunch of us got an off campus apartment. It was 5 people - 2 guys and 3 girls, one of them my girlfriend and now my wife. It was great for awhile - drinking, smoking, partying, etc. Then the personalities started to clash. Let's just say I'm a stubborn person and so were my friends. My wife and I moved out after a year to live by ourselves. I like my friends as friends, but as roommates they suck and I'm sure they'll say the same things about me.
Since then, my wife has been my only "roommate". Come July, we'll have another one.