I had a comfortable and pleasant stay at Claude-Stephanie's Appartment. Clean, comfortable, luminous (as London can be) and roomy. As pictured. She was very responsive to my last minute booking and flexible on my arrival and departure times. She was actually out on travel during most of my stay, but everything runner smoothly. Appartment is just 2 minutes from Sloan Square's tube, and there are plenty of good shopping and a few good restaurants around in the Chelsea area, all within walking distance. Good value for money. The less good: the bed mattress is made of 2 single mattresses, which is not has comfortable as it could be. Also indeed is a high 4th floor with no lift, which for me was not an issue. I'll surely came back.