Amazing proximity to all the attractions you expected in London! Underground (metro) station was only a 5-10 min walk with only 5-15 min tube ride to most of the tourist attractions.
The room is great for those travelling alone as the room and bed and really only fit one person. Do note that the cellar room is beneath the footpath (sidewalk) so noise will be a concern for some.
Nevertheless, this place is great for the value due to it’s proximity to city centre and various pubs and shops close by.