This is a really good AirBnB. The accommodation was large, and well furnished. Nothing was broken. The street the AirBnB faces is a private road, meaning a quiet AirBnB.
In terms of location, it is only a short walk to Balham station, where you can catch railway trains and use the Underground.
Note that the host requires ID to be sent over AirBnB chat before giving out the lockbox code. For privacy conscious guests such as myself, this was not ideal. However, the host was happy to accept an ID with all information but the photograph and name obscured, which was acceptable to me.