A friend and I stayed for five nights and loved it.
The best thing about the riad is the warm and helpful staff, particularly Mohammed, who was very kind and helpful, and generally looked after us during our stay. But everyone there was very friendly, and, after long days, we were always glad to return to the riad and felt very much at home there. We very much appreciated the great service and hospitality.
We stayed in two different rooms, each of which was clean, spacious and comfortable. (Beds were comfortable too!) The design is in a Moroccan style, but contemporary and minimal -- very soothing. We also appreciated the location -- near the northern edge of the Medina on a quiet side street and away from the main hustle. (Worth arranging a transfer from the airport until you get your bearings. Also, note that there isn't really parking there -- if you intend to rent a car, let them know first). We booked through Tablet and the included breakfast of breads, fruit, eggs or fried breads, jam and honey, fresh squeezed orange juice and coffee was great. We also stayed in for several dinners (let them know in the morning you'd like to have dinner in) and were very pleased with the food, particularly a chicken lemon tagine and cous cous. The wine was also surprisingly good.
For anone who wants to stay in the Medina, I can't recommend Zaouia 44 highly enough.