The property is only 15 mins walk to Colindale tube station and apartment's area is also pretty quiet. There were also lifts available to the room. You will surely be able to do things well with the guide provided in the property.
The property is as shown in the photos. If you see the floor plan photo, There were another door after you enter the main apartment door that seemingly lead to other people's room, and it was true. There's a door and there seemed to be people inside. I got no issue with it. You just need to make sure you don't make any noise that can disturb them.
You can decide with the host about how to get the keys. The check out process is also smooth and no hassle at all.