I had a good experience with room provided by Andras. It was spacious and perfect for home-office setup. The communication with the host was quite positive, he was really easy to access via chat and solved promptly the questions that we had. Also the bathroom was really clean.
Please, just note that the place can have an occupancy of 4 couples, and they will all share a single bathroom and the kitchen. Also the location lacked fast access to central London. The easiest way was to get a bus to Newsbury Park (Central Line), or to walk 15-20mins to Romford Station.
Nevertheless, I recommend it for everyone!