My friends and I had a great stay here although we weren't often in! The area is very quiet, but is still walking distance to plenty of shops and restaurants. This property is run by a letting service and was decently clean and orderly. When we needed some extra linen's they came promptly.
We were welcomed with chocolates and a complete house manual. The sofa bed pulls out easily and was comfortable and very long so I imagine it would work well for two sleepers, but we just had one person using it. Note that while Kensington High Street is closest Tube, you are also very close to Earl's Court with plenty of good connections.