As others have noted, the apartment is well equipped, good systems, near transport, comfortable, clean. Great collection of books on the shelves. Kitchen had spices and other miscellany that helped us with cooking, as well as tea, coffee and much else. Proactive communication by host Nick.
Just two aspects made it less than perfect for us. One was the lack of blackout curtains on the bedroom. We stayed at the height of summer, and the bedroom, facing east, was bright enough to do needlework by 5:15 am.
The other is that while the location is excellent in regards to central London, bus lines, Kings Cross/St. Pancras, and new Regents Canal restaurants and markets, the immediate surroundings and the public parts of the building are a bit ragged. The estate has overgrown yards and needs sweeping, while the front building door is framed by trash bins.