We ended up staying in Kalinka Lotus for 4 nights. We booked the smallest room, but before we arrived we were already upgraded to a junior suite, because the Riad was empty and the manager Abdellatif "could spare the room". Great service.
The room was great and the other rooms also looked very good. The Riad has been renovated recently and is decorated elegantly. It is in a traditional Moroccon style but doesn't have the over the top decorations you see in some Riads. The common areas were very comfortable and spacious. The roof terrace is amazing and is a great place to enjoy the tasty breakfast the Riad serves every morning.
The best thing about the Riad was the staff. The manager Abdellatif was a great host and he made sure you were always comfortable. Truly 5 star service. At the end of our trip my girlfriend became ill and we decide not to fly at the last minute. We called Abdellatif to ask him to pick us up again at the airport to stay another night in the rias. Within 30 minutes his driver Ismail was there and brought us back. The cleaning lady and cook even prepared a special tea for my girlfriend's upset stomach. And Abdellatif cooked a tajine for us himself that evening.
The only negative point I can think of was that the cleaning was sloppy on 1 or 2 occasions. But that was solved immediately after we mentioned it.
All in all one of the best hotel experiences we ever had. A big recommendation for anyone staying in Marrakech.