Overall a very nice option for home base to explore London. Tube station and buses are within 10-15 minute walking distance, as advertised. Several restaurants and grocery stores also within walking distance.
Beds are on the firm side, but not uncomfortable. Toilet and shower are in separate bathrooms, which makes getting ready in the morning easier. Bedrooms overlook quiet garden area and not the somewhat busy, but small, street.
The neighborhood is not extremely posh, but not bad either. I'd say it's on par with this excellent price for a 2 bedroom flat in London. It does skirt a really nice area.
The bathrooms and kitchen seemed very clean, but I think the whole apartment could've used a much more thorough sweep/vacuum. We noticed a lot of dust and hair gathering in the corners and under wastebaskets, as if it hadn't been done in awhile. And the carpet in the living room was definitely in need of a clean. The washing machine had been broken by a previous renter and was not repaired during our stay, which was somewhat frustrating as we had a long trip ahead of us and were relying on the ability to wash the small amount of clothing we'd brought. But we understand this happens. The kitchen was well laid out, with the necessary amount of basic eating and cooking utensils.
Minor issues:
1) There's a much-too-large for the room end-table next to the couch that makes it near impossible to navigate the kitchen/living area, if the owner reads this we highly recommend downsizing or removing that as it was nearly the cause of injury several times.
2) Meeting up for entry to the apartment was not well-handled. I had emailed with the manager several times letting them know when we'd be arriving and provided my mobile number. They responded that our arrival time would be accommodated. When we arrived at the apartment there was no one to greet us, no note, text message, email or phone call to let us know the plan for how to get in. I buzzed the apartment several times and no one answered. I called the manager several times with no response. We waited at least a 1/2 hour before a man arrived, who though he did not introduce himself and was somewhat unfriendly, did finally open the door for us and also helped us get our bags upstairs.
All that said, if we return to London, we would stay here again.