Great location (1 block off Oxford) and steps to metro and close by shops and restaurants. Slept 2 adults and 2 kids (19 and 16). Building was secure and the family felt safe in the flat and neighboring area. This is for you if you want to be in the city and use as a base to explore. The furnishings are bare minimum as stated and lack table seating for 4.
The flat did have a damp odor after being locked up but wasn’t noticeable once the windows were opened. It is a big city so street noise should also be expected.