This place is in a good location near two different Underground stops. It's also close to Hyde Park.
The apartment itself is up approximately 50 stairs, as mentioned in the description. It's doable but lugging your suitcase up will be a bit of a chore.
The place is very nicely decorated, though crowded - it's like the furniture is too big for the space in both the living area and the bedroom.
Amenities are very nice overall. The kitchen is super nice and includes a washer/dryer combo which is great. Tea and coffee are included in the kitchen.
Bathroom includes nice toiletries. The shower drain was clogged but other than that, the bathroom was nice.
As someone else mentioned, there is no AC and one of the radiators was stuck in the on position, making it extra warm in the apartment. They do provide two fans, which does help.