We loved Andy's house. It is very very well located, it has the bus and the subway next to it. Direct buses from Hyde Park and great connections to Earls Court Underground (one of the closest to the house but there are more lines near).
The house can give a bad first impression, but then the room and the bathroom is very big and well taken care of. The room has a large bed, a sofa and Andy offers you all the things that are within his reach (towels, adapters to charge the cell phone, heating, his kitchen...) Andy is very nice. I sincerely recommend it. Perfect price-quality ratio.