We booked the apartment of Simon for one week (family of four) in August. Luckily the heat wave ended just the day before we arrived. As the apartment is located on the last floor of the building it tends to be hot in there. (Simon is offering mobile Air Condition devices to rent)
The location of the apartment is brilliant - it‘s just a 2 minutes walk to the Picadilly Line / station Russel Square. I am pretty sure that for sightseeing there is no better location in London.
The apartment is exactly as shown on the photos and for a family of four (two bedrooms and two bathrooms) perfectly sized. A Starbucks and a Pret-a-manger are just around the corner.
The apartment was clean when we arrived and we did not find any reason to complain. Overall we had a great time not only in London but also in the apartment. Clearly recommended.