Try
http://www.hostelworld.com/
Don't be put off by the 'hostels' in that site's title. They list hotels as well.
In the search panel, click 'Additional search options'. Put check marks alongside 'Guesthouses' and 'Hotels'. Select the currency as 'British Pounds' and fill in the other relevant details.
Wherever there's been enough feedback to create a meaningful average score, each hotel will have a 'customer satisfaction' rating alongside it. Additionally, you can read all of the individual customer comments if you wish. (Note that, where there are only a small number of reviews, the 'percentage' score doesn't appear on the main list but you can still access it, and read the comments, by clicking on 'more info').
The Hotel My Home has a good (86%) score and, on the August dates I checked, is offering 3- and 5-bedded rooms at �23.38 pppn. That's just one example from the 76 properties on offer. They've all got detailed descriptions (including details of their locations) plus those important customer reviews (which will be able to tell you far more than any one person here on AnswerBank can).
Hoping this helps,
Chris