Having paid a very low price for four night in London for two people, we expected an absolute dump with no hygiene standards and a grotty atmosphere. Instead, the location was beautiful, the staff (Antonio) was friendly and helpful from the start to the end of our stay. We booked a studio room, which was clean and cool inside (we visited during a heat wave).
There were plenty of bathrooms for the large number of guests staying in the five floors. (I think it was five floors) and if there was any issue, it was the state the guests left it in, but they were cleaned relatively quickly. Noise was not an issue, at least when we stayed.
Bad points, my sister said the bed was uncomfortable (I don't notice these things), our studio room had cooking facilities but no pots or pans, and very little cutlery. Lots of crockery though. No lift, so we had to walk up four flights every day. The carpet on the stairs was stained.
Good Points. Friendly helpful staff, clean facilities, beautiful view, lovely area of London, 10 minute walk from shops and stations. Easy access late at night.