We stayed in this hotel beginning of November 2010. I can confirm all the previous comments, it is a wonderfull hotel and an oasis in the middle of marrakech. The ambiance, decor, food and more importantly staff were of such excellent standards.
The interior perfumes of rose and jasmine are throughout the hotel. delightful. Attention to detail is evident everywhere, the facility to order breakfast or meals at any time tin your Suite or in the common area makes you feel at home.
I also tried the massage, it was a high standard.
Would we return Rose Sultan? Yes very much so. It was wonderfully romantic, calming and relaxing, more than we ever expected.