We found this a very comfortable Riad some 20 minutes from Fnaa Square. Our room was clean, beautifully decorated with traditional Islamic carved plaster work overlooking the central courtyard with plunge pool. The staff were extremely helpful and friendly and we felt very welcome. The standard of cooking was very good with interesting traditional breakfasts and the evening meals were good Moroccan style (including catering for a vegetarian). The roof terrace was a superb feature with tables and a comfortable sofa under an awning. We ate there a couple of evenings and felt very pampered. Note that, although payment for the accommodation can be made by credit card, payment for food and drink has to be in cash and we didn't find this out until we were leaving - involving a trip out to the nearest ATM. Our advice would also be to ask for the staff to organise your transfers which, while a little expensive, does ensure you find the place (difficult) and are not at the mercy of a rogue taxi driver. Also, while the walk to Fnaa square is only 20 minutes, it is a very busy route (Street of a Thousand Mopeds) and unsafe in the dark.
Overall, a good place to stay. I doubt you will be disappointed.