I booked this trip for 4 people at the end of May.
We were picked up from our hotel (about 30 mins outside of Marrakech centre) and drove for about 2 and a half hours (with a 15 minute stop at a cafe for some traditional mint tea). The drive was pleasant with great views, and our guide Ahmed kept us entertained with facts and knowledge about the areas we were passing through.
When we got to the waterfalls, we were met by our guide Mohammed, who was extremely friendly and spoke excellent English. We began at the top of the waterfalls and trekked down. Mohammed asked if we would rather go the normal route, or off the beaten track slightly, and we chose the latter which I would strongly recommend for anyone who is in good health with suitable shoes! It took us about 45 minutes to get down to the bottom, with incredible views the whole way - including wild monkeys!
On the way back up, we stopped and had lunch, and we were served by a very enthusiastic man! Our guide was also happy to take numerous photos of our group, which turned out beautifully.
After hiking back up to the top, we were driven back to our hotel, although most of us were asleep for this!
I would highly recommend booking through this company!!