Small studio apartment, good value for money, and as described. For what you pay, you can't complain. Immaculately clean and well presented.
It's not 5 star, but you are not looking for 5 star here. It's an excellent place to rest your head while exploring London.
We had some minor issues. There was a loud house party blasting out music on what sounded like a nightclub grade sound system next door until 6am. The adjoining house appears to still be one unit, and they had a big party, with everyone dressed up smart as you would expect in this posh area. Hundreds of them were crammed into this house party. While it was interesting to observe a "rich people" house party at first when we arrived back to sleep, it was very disruptive. This is by no means the fault of the host, and I don't know of this is a regular occurrence. But it bears mentioning as it was very disruptive.
We also found the sofa to be uncomfortable, and the ladder to the bed to be slightly precarious. All in all these were minor issues in what was a good stay, and we would probably not hesitate to come back.