I use to go there as well, and yes, Hatfield is a dump and all the residents look like inbreds. OK, i went a bit far with the inbred comment, but i wasen't the only person to notice how 'funny' looking most of the residents were.
I found the uni good though, my teachers were great, the LRC is decent, they have a lot of clubs (american football etc) and i always had fun at the student nights. The only negative i can say about the place is it's location. There really isn't much to do in Hatfield.