Karl's place was lovely to stay in. The common area is beautiful and modern, with all the amenities. There was a key-code to get in the door, which was very convenient, and the kitchen and bathroom were very luxurious. The location was great as it was quiet but close to everything. Karl was very responsive to any communication and super helpful. One small downside was that there was a bit of a language barrier and there were times when I wasn't sure what he was saying (like when there was an issue with the shower), although I really appreciate that he accommodated our limited French and tried to communicate with us in English. The ceilings upstairs were pretty low (couldn't stand up in some of the rooms and I'm 5'9") and there was only one shower (plus a bath upstairs), but otherwise the apartment was great.