First the negatives: Flat was too small for a group of 4 travelers. We were on top of each other for our 2 night stay. The flat did not have working WiFi for the entirety of our stay. Daniel tried to have somebody fix it, but no luck and we were counting on using the WiFi to plan our days. Finally, accessing the keys was confusing. There are 2 key boxes and you need to use the far one..
Positives: location was perfect. Great area and a short walk to tourist attractions and the tube.