We were here for a week and had a great stay. The place is well furnished and the kitchen is well equipped. Wifi worked well. Shower was warm.
It's about a 10-15 minute walk to Kennington (depending on your pace) where you can catch the tube to the city centre or you can take the bus, which is right outside. Steve was easy to communicate with and very responsive.
Only one thing to note, which was that the lift was broken when we were there. This is obviously out of Steve's control but it is something to note for anyone with mobility concerns or has a lot of luggage (like us!).