Stayed in two rooms (2nd and 4th floors) during the week; second slightly larger (room for an armchair) and much more expensive (for reasons unknown). Location of Sonder is good (Lancaster Gate/Queensway tube; ten minutes to Paddington). Rooms are clean and small. No housekeeping during stay unless you pay an extra charge; fresh linens provided on request. No breakfast facilities, although a coffee bar was in progress during our stay. TV channel selections are poor; Chromecast streaming can be made to work--but not to stop. Inflexible on early check-in, but luggage storage available. Basically a post-Covid hotel: a small, clean room, newly refurbished--and that's all (no housekeeping, no restaurant). Better value available on Airbnb in the form of flats.