This is a nicely laid out flat in the West Hampstead section of London. My wife and I spent a week there mid February. We were located very close our son & daughter in law’s flat, and the underground (tube) station. We enjoyed the proximity to local coffee shop’s (especially Maison Vie), and local restaurants.
We were very comfortable with the space in the flat. It was nice to have a sitting space to surf the web (there is WiFi), sip tea or wine, and plan the next days details. Our host did provide many basics such as coffee, tea, milk, and sugar. He also left us a bottle of wine, and some cheese.
The sleeping accommodations were comfortable, and quiet at night, which is another plus for London. The host left plenty of towels as well.
We were not able to use the balcony, but since it was mid February, we did not expect to.
There are about 4 flights of stairs to climb, and descend. In order to get to and from the flat. That could be a limitation for some travelers. My wife was 4 months post meniscus surgery, so we had to limit that climb to once or twice daily.