We had a great stay in this place in Barnes. Plenty of space for our family of 5, very comfortable, beautiful area, easy access to Hammersmith via foot across the bridge. Bill / Paul very responsive and good communication with the person upstairs who helps manage the bookings. Place itself clean and comfortable.
For the amount of money, we were perhaps expecting too much and a few basics could be easily improved to make that stay a bit comfier and improve apparent value for money (specifics provided in good faith to the host to consider addressing for future guests). But to be fair, the London accom market is in general pretty terrible value for money, especially in summer!
Happy trails.