Everything went perfectly smoothly with Lobsang. We were able to take our luggage to the appartment right after the previous people had left and let the housemaid to her job, although we were too early.
The appartment was huge, calm and well situated. Everyone in the building seemed very nice and respected the no noise after 10pm rule.
The metro / tram/ bus stations are only a couple of minutes away and well served.
The only small problem was the paper-thin walls, through which you could hear the neighbours talk. But as they were silent at night and we left of the whole day, this was no problem.