In our 3+ week stay in Morocco, we had the chance to experience quite a few hotels and riads -- what we loved about Riad Dar Tiflet was that Yassine was the most attentive, friendly, and caring host; and the breakfast was an affordable add-on and it was really good (compared to other places where you might get only cold things). It wasn't noisy at night and the location is close to many things you'd want to see while in Marrakech.
Just a note: the double room is a little small for two people if you have your suitcases open, and the washroom has a curtain not a door, but there is another private washroom available if you prefer. Neither of these things were an issue for us, but I thought some readers might want to know.