What's a refund?
I can see while you are in college getting money back but, if you still get money back after college working full time in your career job, you are doing something wrong. Enjoy your refund now but try to arrange your taxes for no refund when you get out of college.
Deductions aren't always predictable so it's hard to arrange that. And, I'd rather have a refund. I know, I know, it's an interest free loan to the government, but I like getting the big check every year. If I adjusted my W4 and got a few extra bucks on each paycheck, I'd spend it on useless crap and wouldn't save it.