Adam John's apartment is equipped with the basics you'll need for a budget stay in London. The location is within walking distance of some great restaurants and a supermarket, and easily accessible by public transit. The host was quite flexible - I booked the place very last minute due to unexpected circumstances and yet they were able to have me check in earlier. I also had to leave the place a day early and they still refunded me for the night I didn't spend there on a very short notice, which I appreciated. The only downsides are that the room is not very soundproof and the bathroom is quite small, so I would take that into account. :-)