As others have noted, the real downfall of this property is the lack of any discernible service. The listed phone number appears to go to some kind of answering service - whoever picks up the phone doesn't know anything about any of the properties (or even what the properties are), has no access to any of the records, and cannot make any decisions or take any actions regarding the issue. They take down your information and your query, and promise that someone will call you back. We had tried to arrange an early check-in - not only did the blow the promised time, their person was late even for the nominal check-in time. Let alone hotels - the service level was worse than any AirBnB I've ever stayed at.
Condition of the property itself left much to be desired - cracked window on the front door, shattered window on a mid-way stair landing, cracked plaster and paint in several places in the apartment, some of the lights didn't work, filthy, stained carpet on the stairs. The apartment itself is small but reasonably comfortable. Furnishings are sparse but functional. By no stretch of imagination is it luxurious, though nicer than one might expect from how the rest of the building looks.
The neighborhood is a delight. Lots of adorable restaurants, pubs, cafes, and picturesque crooked streets. Daunt Books is wonderful, and Bea's Tea was very pleasant. Easy access to the rest of London via buses and underground, and even not too far of a walk, if that is suitable.
