My family of five had a wonderful time, and were very comfortable in Kevin's house in Greenwich. The house was very clean and tidy, and well-equipped with everything we needed. He even set up a lovely little Christmas tree, which was a very nice touch in the week before the holiday.
There were plenty of towels, linens, and pillows. The mattresses were a bit firm for my taste, but certainly not to the point of real discomfort. Especially nice for a family with small children, it's easy to separate them from the living room and kitchen after their bedtime. It was possible to hear people talking on the street very easily as they passed by, but that was only on the ground floor on rare occasions, and the neighborhood is really very quiet; our sleep was never disturbed.
We didn't use the back garden at all (in mid-December), but it looks very nice.
Kevin was very responsive when we had some minor trouble, and went out of his way to help us get something printed out when we weren't able to do it ourselves. He gave me confidence that I wouldn't be left to my own devices if we had any real problems. If I find myself in need of accommodations in London again, I will certainly be checking to see if Kevin's place is available.