Terry's house is beautiful, spacious, and clean. He is a thoughtful and attentive host - I especially appreciated his help in doing laundry, and suggestions on public transit and things to do nearby. Herne Hill is fantastic, very peaceful and feels far away from the bustle of central London while well connected by rail, bus, and tube. Overall I recommend staying here, especially for those coming to London for work or needing to be up early in the morning - do consider the 'quiet hours' policy in the description (10 pm) before booking, as it is quite strict. Three of the rooms (including Terry's and another guest's) are on the same floor in close proximity, so sound travels easily.
PS An unexpected bonus was the super fast wi-fi (best I have had while traveling).