I can only echo the positive comments already made here.
Our 2nd time in Marrakech and although 1st time we stayed in the beautiful Sofitel and really loved it, we thought we'd try something different this time.
We often stay in other '5 star hotels' only to find they're not (apart from Sofitel which always lives up to or exceeds our expectations)
But when it comes to 5 star the Al Fassia most definitely is. The staff is friendly, professional, unobtrusive yet remarkably intuitive. The whole building and grounds are spotlessly clean. The breakfast - considering it's called 'continental' (which often means a bread roll and cheese) was much more than that and exquisitely presented.
And there is no awful background music! So many hotels seem to think guests like it. We don't - so this quiet was such a treat.
If you like genuine quiet, top class service, huge rooms, everything working, then this is the place for you!