Small flat, good location, excellent communication.. We are so surprised to see that no past reviews have mentioned the train line that runs directly underneath the flats location. The obvious humming of the trains that run every 15 seconds under the flat is definitey enough to keep you awake late at night and early in the morning when the trains begin again. Thankfully they stop running between around midnight and 4am-ish, but whilst they are running, each and every train can be heard passing through the tunnels below the flat. Otherwise communication was great. As others have mentioned, if you plan to use the pull out sofa, there is really no space left to move in the flat, it's very squashy.