The team at Penthouse stays is fantastic! They were very responsive to messages and were flexible with allowing early check in and late check out requests.
The location is on a busy road in Chelsea but one couldn’t hear the traffic noise in the room I had. Occasionally you could hear the sound of an ambulance siren.
The room was very clean and had most things you would need for a stay except for shower gels and shampoo. They only supply one single use tube of each.
There are several grocery/convenience stores within 5 minutes walk and a larger wholefoods that is about a 15 minute walk.
Overall I enjoyed my stay.