The space is really spacious, airy (just as the pictures), clean and well equipped. The check in was managed by another agency- Hostmaker- with whom I had no problems of communication.
I stayed there for a long term, since I was working at Kings College just nearby, and the localization was perfect to me. It is close to the center of Brixton, a very nice and diverse neighborhood full of nice bars and restaurants, and also to the public transport. The tube (Victoria line) is a 11-13 minutes walking, and the bus stop and the train station (Loughborough Junction) are very handy. Just nearby there's a Tesco Express, but you can always walk a little more to the others big groceries, and it is also very close to the awesome Brixton Market (less than 10 minutes walking).
Brixton is inside the zone 2, which is really handy to the most known touristic areas of London, at zone 1, and is a very authentic neighborhood (besides its fame of violent, as a young woman I didn't have problems at all, even walking nearby at night).
The space is settled inside a big house where there are other spaces, but I have to say that it is very silent. As I had a long stay, I had some issues with the shower drain-but by the end it was fixed. I could always talk to Sam (Paige's father) to report the difficulties and he was very accessible.
The only bad issue, however, was to deal with Airbnb, that had troubles to complete my payments every month (if you are staying for a long term, make sure you don't need to change the card during your stay).
In general, I had a lovely stay and would definitely recommend it.