For 55 bucks, how wrong can you go?
I didn't know BG ever made bikes (actually it almost certainly didn't, it just labeled a bunch of them). From the look of the bike and the small amount of information available online, it's a dead cheap cruiser, probably fairly low quality--which is exactly what you want for school. It should be stable, comfortable and not attractive to thieves. Pick up a patch kit and pump somewhere, and someday when you're sitting around with nothing to do, figure out how to service the hub bearings and bottom bracket, which will need it eventually (www.parktool.com is a good place to look). Every couple of weeks, drip some oil on the chain, ride a few blocks, then wipe if off with a rag you don't care about. if it rains, you can put fenders on it for $20 or so. Otherwise, just ride it and don't worry about it.
It's actually a pretty cool looking bike...