I stayed at Richard's for 2 weeks. I was a girl alone and I never felt uncomfortable. Richard was a great host. I have been able to use the kitchen every night, do my laundry and the private bathroom is good, with a great pressure for the shower !
The room is big with a lot of storage.
It is really close to Balham station and you have all the shops you need around you.
I will recommend this place for anyone ! Don't hesitate !!