My partner and I spent 4 nights in Riad Noos Noos in November.
It is in the centre of the Souks, in the Mellah, so everywhere is within walking distance.
On arrival the staff will give you a map so you won't get lost.
The french owner of this lovely riad was incredibly helpful to us during our stay. The staff were also very friendly and provided a personal and very high standard of service.
The riad itself is beautiful. The rooms are stunningly decorated, comfortable and very quiet.
I would recommend this riad to any friends and would definately use this riad if i go back to Marrakech.
The only downside was the poor weather, so we didn't get to use the roof terrace but we had a look and the view was amazing!
I will return.