The location is excellent for touring the major London sites. A 3 minute walk to Lancaster Gate underground station and 5 minutes to Paddington station makes access to the city quick and easy. Even on foot Buckingham Palace is an easy walk and the large Kensington Gardens and Hyde Park are a few minutes by foot.
The apartment itself is in need of some repairs. The flooring is decidedly worn and in the bathroom uneven. The caulking around the tub and some other places is cracking and pulling away. The tub and shower surround are in bad shape as well. However, everything is serviceable.
The unit is on the third floor makes a challenge of getting baggage up and down. Most of the storage spaces are filled so there isn't a lot of space to put your own things. The unit sleeps 4 but the couch is very firm and may not be comfortable for some people. The kitchen has the implements for basic cooking but might be a challenge for baking or anything more involved.