Booked this for when my parents were visting London since I live in the same area. Everything worked very well regarding check in and communication before the arrival.
The place was absolutely perfect for a couple and loads of space if you wanted to bring a couple of children as well. The garden just outside the windows was beautiful.
With the closeness to Clapham Junction, this is a perfect spot to stay to get outside the absolute centre of London but still be able to go to wherever you want in just a short time.