When I arrived, there was an issue that needed to be addressed. The owner personally came within 60 minutes and took care it. Besides that minor hiccup, everything was exactly as advertised. The apartment is 1/2 block from the Overground train system, which gets you to the actual city of London within 15 minutes. There are also 4 bus stops within one block. These buses will take you everywhere within the city of London very efficiently.
The area is very active at night. I loved the energy as there are plenty of activities (pubs, restaurants, clubs, movies, etc) to do there in Dalston or in neighboring Hackney or Shoreditch. The apartment was very quiet. I didn't hear any traffic or passersby while inside.
I went to London by myself. While the apartment was a little small compared to what I usually reserve when away from home, this was perfect for me as all I needed was a clean & private place to sleep and bathe. If you are going with other people (unless you like to cuddle all the time), it may be too small.
Overall, a great experience.