The apartment is located above a highly frequented bar in a section of the street that has a number of bars, so the noise level at night until 2 or 3 am is extrem. The vibration from the music climbs up from downstairs and is very dominant in the bed rooms, so are the sounds from the heating system plus street noise. That's cool for people who come to town to party and stay up late, I guess, but you can't plan on taking a good night's sleep before morning hours.
Apart from that, a nice and well kept place, easy check-in and good and fast communication.