We had a great stay at the Sanctuary House Hotel. Rooms were very nice and clean, the bathroom was modern, and I wish we had instructions how to use the showerhead (but on the second day we figured it out). Breakfast was good, it was in the pub restaurant. My daughter said she really liked the Breakfast layout. Be prepared though some nights service is slow in the pub. We got used to it. We had dinner in the pub a few nights, and the food was good. Its location is perfect, a few mins. away from St. James Tube station. We used Viator transportation from Heathrow to our hotel for the 4 of us, it was cheaper for us that way than take the Heathrow Express. The only reason I can't give a 5 rating, is because I was not notified that Scaffolding was around the hotel, our view was the scaffolding, and we didn't get the floor I was confirmed for.
But at the end, we were gone all day, so the view didn't matter than. The reception was very helpful. We got our little chocolates at night on our beds, loved that. Wifi was good. They had tea/coffee in the room, which I loved to have my afternoon tea.