The appartment is perfect! I've been there for three months and I couldn't be happier with my choice. The location is amazing, the neighbourhood is super safe and has a lot of shops and restaurants. My favourite area in London without doubt! Moreover it is very well communicated by bus and Underground with all the city.
Regarding the appartment I felt super comfortable. It is of a perfect size for one or two people. It is well equipped with all the necessary for cooking and It was very clean. The building is very safe since there are 24 hours concierges.
I definetely recommend It for a short or long stay. I would repeat there for sure when I go back to London.