Michael's apartment was great - a spacious 1-bedroom which was more than enough room for us and our large suitcases. There is tons of unpacking space in the wardrobe as well. The location close to the tube station is fantastic, with lots of restaurants and supermarkets, but quiet for a good night's sleep. The apartment was spotlessly clean, uncluttered, and well furnished with all conveniences. The bed was extremely comfortable, as was the other furniture in the living and dining areas. We didn't use the rear private patio in November, but I can see how great that would be in summer.
The only thing that took some getting used to was the fact that the bathroom is on a different level from the bedroom, and has a slightly deep tub to get into (nothing that a grab-bar can't solve), but if you are mobile, that's easily workable. Michael is a very responsive host and his detailed messages with recommendations were much appreciated. Overall, it made for a fantastic base in London.