This place delivers everything it says.
The price is great (especially for London); the room is large; the bed is comfortable; the water is hot and plentiful. There is a sitting room and full kitchen & laundry facilities. It is close to the overground train station (7 mins) and although this service was under repair when we were there rail replacement buses were frequent and took us, at no cost, to the next underground station. The place is in Transport Zone 3 which means it is quite close to the heart of London.
The only thing to be aware of is that this really isn't like a conventional Airbnb where you either share a room in someone's house or rent an entire place for yourself alone. This is much more like a sharehouse arrangement with some fairly permanent tenants and others, like us, who come and go.