The appartment is nice and it is not my first time with Sonder, but communication was just awful. There were huge problems with the check-in. I received an email with check-in instruction, but no info about how to get a key. I had to contact Sonder 5(!!!) times and no one knew where to get the key and the code from the locker (they told me to go to the KeyCafe, but it was in the basement), so I literally waited 40 minutes just in the building with all my lugagge. Also it was very hot these days (40C) and for some reason the window in the bedroom didn't open at all and the others opened the slightest bit and it was super hot. I contacted Sonder and requested a fan and it took them 3 days to bring them and I had to remind a few times. So three nights out of five of our stay were super hot and impossible to sleep as the temperature in thr bedroom was 29C and there was no chance to open a window. Also Sonder people were quite rude and told me that they don't have time to answer everyone and it was very weird as they tell that they have 24/7 concierge. Only after I contacted Airbnb and complained about it they brought the fans. Also keep in mind that the bed is too small for 2 people. I would say it is a perfect appartment for 1 person in autumn-spring. Because it is a nice clean place and it is quite nice and new, also a great location. I think Sonder just has to work on their team and on the check-in, because our neighbours had the same problem when their arrived to their place.