So far, not as fun as you're led to believe. Early mornings, really late nights, lots of homework and studying, and extracarricular stuff isn't as fun as you think. Although I think it's easier to deal with if you commute; I'm stuck living on campus because it's a five hour drive from where I live.
Therefore, I've come to the conclusion that whoever said that college was the best years of your life had to be a high school dropout.
Ah, cool. And ahh, senioritis, I remember it fondly.