This house on the mews is wonderfully located: close to major Tube stops and near to Kensington Park. The house is four floors, which had many stairs, but we enjoyed it as we could separate ourselves on different floors, with the main living area being on the basement level. The kitchen was well-equipped and the lounge was comfortable. As with many properties on the site, it wasn't as immaculately clean as it was in the pictures and some of the housekeeping could have been better. Two of the televisions were not operable as there were remotes missing and no instructions on how to help. My daughter accidentally put weight on one of the floating nightstands in a bedroom and it came out (the screws were stripped, but we accepted responsibility); I was a bit upset that they tried to bill me more than the invoice to fix it at a higher exchange rate, but we settled all of that easily.
I stayed there with my husband and four children; based on the amenities, I packed light but ended up having to make a run to the market as there were not enough shampoo/soap, etc. for us to stay all the days we had scheduled. That being said, having laundry was a big bonus.
All in all, a great place for a family but I'm not sure I would repeat a stay as paying $1000 for a night left us underwhelmed. I had high expectations for paying that much money.