Just to clarify that even the estates aren't bad, Orchard Park, Bransholme, Bilton Grange they're just your typical estates but i'd say are much nicer than estates in Leeds/Manchester, and they're not all council either people do infact own their houses in them areas and some can be pretty nice.
I live on Kingswood (Inbetween Bransholme and Orchard Park) The number 15 bus from the Uni comes to Kingswood so you'll see it mentioned quite a bit, it's a huge new build estate and its really clean and pleasent to be in, i see quite a lot of Uni students around here because of the retail park with a Cinema, Bowling, a large ASDA and other shops on so you might find yourself around here at somepoint but i wouldn't worry about the estates, you could always go see them to put your heart at rest Bransholme Centre is good for shopping if you fancied going! The only places in Hull you'll be mostly (Unless you get very lost) is The city centre, Princes Avenue, Newland Avenue, Cottingham Road(The Uni), Cottingham and Kingswood.
I also noticed someone mentioned the seaside, Withernsea is a bit run down these days, Hornsea is mainly for old people but Bridlington and Scarborough are both easy to get to and much better to visit. Cleethorpes isn't too far either but i'd avoid that, Skegness is decent for a weekend away too.
Then if you fancied a day shopping you can go to York, Leeds, Sheffield, Manchester all in under 2 hours. Then you have the likes of London just a mere 2 and a half hours away on a direct train.