My kids and I stayed here for 1 week to visit mostly central London destinations. This is our first time in London. We are so glad we stay here instead of touristy spots in London, we got to see what normal neighborhood is like, took buses/trains into London along with commuters, grab quick bites at local eateries in Richmond...all and all an amazing experience.
We feel very welcomed into Catherine home, everything is pretty much as pictured - the bedroom and bathrooms are stylish, cozy, and very clean, bed linens are super soft and comfy, there is an electric kettle plus tea/coffee supplies in the room which turned out to be very very useful for emergency instant oatmeals/noodles for hungry little ones on occasions. There were 2 beds in the sizable bedroom, one queen size (american standard) which fit me and one of my boys comfortably, my other boy had a twin bed all to himself. Having access to washer/dryer just down the stairs was also very useful so I could pack light. Catherine was very quick to respond to anything we needed or questions - in fact she messaged me as soon as we arrived at Heathrow that our room is ready for early check-in (I inquired beforehand since we were due to arrive by 11am, normal check-in is 2pm). Another unexpected benefit is that my kids really enjoyed playing with Catherine's kids, this turned out to be their favorite part of this trip. :)
Most of our planned destinations are in central London, so we took bus then train into town daily. Bus stop is 5min walk away and came very often, 10-15min ride to Richmond tube/train station depending on traffic, walking to Richmond station is also very pleasant if you don't have little ones, the Thames River is beautiful. I used this app called "Citymapper" to help me plan my routes using various transportation methods, highly recommended. The house is not too far from Heathrow, convenient location on the way out for sure, I was able to get a Uber very easily on a Sunday morning for a quick ride to the airport.