I stayed over at Mojtaba's BnB for 2 nights. He's super friendly and was kind enough to allow me to check in earlier than the designated time.
Location wise it's pretty well connected to Central London and takes just about 25-30 minutes via the bakerloo line. The Lyndale avenue bus stop is right outside the building.
The room was spacious and had a cooler which was a saving grace in this oppressive heat.
Overall, a great experience and would definitely recommend it