The room was bigger than it appears in the photographs on Airbnb. An unexpected bonus was the kitchen, we cooked our own simple dinner every day. Cleanliness was good for London, certainly better than in the hostels I used to stay in. The shower had a functional water heating system, and the rest of the plumbing was excellent- not always to be expected in London:-). If you want to see Greenwich, you can't find a better location, the flat is a couple of hundred yards from the train station, and within easy walking distance of Cutty Sark, the Maritime Museum, and the Observatory/ZeroMeridian. It is in TravelCard Zone 3, so ordinary Underground tickets and cards can be used. Alton is a very experienced host, and despite being busy, did his best to make us feel welcome. He also let us keep our luggage in the flat for the rest of the day after checkout. So all in all, a very good stay, recommended if you are on a budget or want to go to London on short notice.