We had 6 people stay at Jemma's house: two young children (4 and 9), my wife and I, and my my wife's cousin and her husband. This place was absolutely wonderful for us all.
For the children, there was a pool, a trampoline, a little fort/swing area, and a nice patch of green space -- it was like a little vacation for them. They swam every single day! And, what can be better for any child -- than playing with other children's toys?
Then for the rest of us, the BBQ and picnic area was a great treat too. As was their garden - of which we plucked a few vittles (with her permission, of course). We didn't have a car, and yet it was quick and easy to coordinate local food shopping too.
Similarly, we also found it was quite easy to get into the part of London we needed to get to: take the 163 or 163 for a couple of minutes into Wimbledon. And then it's a straight shot to Edgeware off the District line.
So it was a perfect stay. Our family loved it. Thank you Jemma!