Olga's flat in Chelsea was really wonderful. We needed two rooms for 3 adults and each room was a complete room with a comfortable bed- not a pull out couch. The kitchen was very well equipped and we cooked frequently. We were given a clean and change of linens, towels half way through out stay with no additional charge. We enjoyed our Netlix from a large TV in the spacious living room.
The neighborhood is great. We walked all over or easily took buses or trains to get to everything in London. One block to grocery stores, pharmacy, restaurants, everything we needed to actually live in London, not just a quick tourist stop. It is not in the center of a tourist area but very easy to get to all the sights and then back to a quieter and safe area.
We were able to join a great gym which was 0.7 miles (Chelsea Sports Club) for $85 per month- weights, fitness classes, yoga, large pool, cardio equipment. That gym also offers day passes.
The flat is above a restaurant but we found it usually quiet, even with the windows open. Weekend evenings were occ noisy but the primary bedroom is away from the street. Olga, the host was so amazing with communication and handling anything that came up. Highly recommend.