When thinking about coming to Fez there are multiple things you should take care of, being the most important of all booking the right place where your moroccan dream will come true.
Tripadvisor is a great tool but beware, many things are highly manipulated. Edreams, Lastminute and Booking offer many riads in the medina, but not usually the most refined, and feels utterly inhuman.
Remember that Gatsby was a tourist in Fez once too, and everytime he had to come he took care of reserving through www.fez-riads.com run by Helen Ranger. Why? She has handpicked the most beautiful riads in the Medina to provide you with that magical feeling you're looking for, she knows everyone and everyone knows her, her website is clear and in three different languages and has -that is the part we like the most- a small selection of private houses ready for rent, all special, all detail, all wonderful. On top of everything she donates a percentage of her earnings to several restoration projects in the Medina. And if that was not enough I will reveal that she amongst others is resposible for the Lonely Planet basic guide Fez Encounters. Of course she is as well one of Gatsby's friends and goes without saying, a true lady.
