This place is bigger than it appears in the pictures! There is enough sitting room to have dinner for two people and a desk to do work. We even cooked dinner two nights with the cookware and utensils provided. The bathroom is a little small but functional. The bed is comfortable but tight for two people...but by European standards, it's great! We were there for 8 days and it was a great place to come back to after a day of exploring.
But the star of the place is the location. In the Bayswater/Notting Hill area, it is close to everything by public transportation (about 30 minutes to get to most tourist attractions). It is far enough away to feel local and away from the throngs of tourists. There are 3 grocery stores nearby, a ton of great restaurants of all cuisines (highly recommend ChoJo Chinese around the corner).
As for the noise mentioned in the listing, we stayed there in March 2023. There was some construction noise between 8-6pm on weekdays, but it was not that bad.