It's a beach cruiser. I don't see anything wrong with it. And one of my LBS's does carry Sun bicycles, so yeah, they are a "real" bike company. It looks fine if you're just going for a "cruise," heh
It should be an ok beginner bike, if you just want to relax and cruise around the neighborhood. I wouldn't recommend it if you wanted to go mountain biking or really long distances, but you're looking for a beginner bike, so this should be ok. Test ride first, see if you like it before buying, though.