We really enjoyed our 11 day stay in the apartment in Sloane Avenue, our late arrival was no issue because the reception is open day and night, the apartment is clean and functional, its not huge but enough space for two adults and two children (8 and 11) when you need a base for your trips and excursions during the day. Every seven days the apartment is being cleaned, once during our stay. It's really very central, a shop across the street, bus stations nearby and tube stations in 10 min. walking distance. People at the reception and the office were nice and helpful. When we booked we didn't see actual photos in advance, just representative pictures, it would have helped us to see how the room layout was, so in our case it turned out to have a main room with kitchen unit and sofa (which can be turned into a bed), a sleeping room with double bed and a small bathroom with shower.