We stayed here the night before going to the Harry Potter experience (as many people seem to do judging from the other reviews!). I can't fault the place, the room was very comfortable with everything we needed. Though others have commented on the heat of the room we had a fan and didn't find it to be a problem. The reception staff were very helpful and provided a map for us to get to the HP experience. Given that I only paid £29 for the room I think it is excellent value.
The only negative thing I can say is about the TGI Fridays next door, we had an evening meal there and I can honestly say I've had one of the worst meals I've ever had there. I was relieved we hadn't booked for breakfast. There is a McDonalds next to TGIs and I would recommend going there instead!