Stayed in Damien's studio for four weeks. Genuinely thought about making it a bit longer stay but another guest was arriving after me. Will definitely come back next time I'm in London should it be available. The place, very charming, well heated, clean and well arranged, has a definite home feeling AND a very comfy bed ! Actual resting nights as it hadn't happen to me for a long time. Damien is a very practical, available and helpful host. It was basically like staying at a friend's place.
As for the area, it kept its promises too. Great to have a park to run in five minutes from home, direct bus to/from Euston practically at the door and Kennington station less then ten minutes walk. I recommend breakfast in Sally White right at the corner of the street or in the collective café in the park and dinner at KT Tandoori. Great pubs too : Dog House for cosiness, Tommyfield and it's comedy scene for laughter, both good food and beers.
To sum up, the Airbnb site marked Damien's studio "Perle rare", it is.