This home is really spectacularly good.
Comfortable, nicely decorated, clean and efficient. Its two bedroom, two bathroom configuration makes it ideal for a family or two couples visiting London together. (We were the former - an old couple providing a grandson with his first travel abroad, but we can well imagine the latter.)
Your host Andrew is exemplary in every way - communication before and after your stay, helpfulness with advice of all kinds, and gentlemanly in approach and demeanour.
But the aspect that makes this place perfect is, of course, its location. The edge of Mayfair, and therefore within easy reach of every place and thing that makes London such a deeply intriguing and satisfying city to visit.
You can’t do better.