Great place to stay in Twickenham. I've appreciated these villages along the Thames near Heathrow. Twickenham is known for its rugby but I think it should be equally known for the river. Life seems to revolve around daily ebbs and flows of the Thames.
David's place, as shown in photos, is less than a block from the river with several excellent pubs within a stone's throw.
It takes 40-50 minutes to get to/from LHR by public transit and about an hour to get to Central London.
The room is of good size with outside, adjacent balcony. Large desk is good for getting laptop work done. Bed is queen sized (I think) and comfortable (a bit softer than firm). Bathroom is good sized though shower itself is a bit small. All could use a bit more cleaning though you'll note David doesn't charge cleaning fee and at the moment is working extra hours.
David is very hospitable in offering a large selection of tea and coffee too. And if you're lucky enough to taste his bread, you're in for a treat.
All in all, a great place to stay.