This is a nice budget place to stay. The house is all right, nothing too fancy, in a reasonably quiet neighbourhood, with clean streets and a safe atmosphere. Marian's flatmates were really kind. By bus you can get to central London in about 30 mins. (Trains to Victoria even faster, the station is a 10 mins walk away.) There's another bus that will get you to swinging Brixton in no time.
I didn't always get good wifi in the bedroom but in the living room it was fine. One morning I had to wake up Marian's flatmate because there was no hot water, yet he fixed it quickly. (They have a system where you have to pay in advance for gas.) I'm sure this doesn't happen very often. All in all I'd surely recommend, it's a nice & cheap option for London.