Summer trip. Some doubts

Good evening, everyone.

This summer I’m planning a trip to Morocco lasting about two weeks. I’d like to spend around 3–4 days in Marrakech, 2–3 days in the desert (Merzouga?), 3 days in Essaouira and 4 days in Fez.

Is this feasible? Would you recommend spending less time in some places and more in others (for example, I’ve heard there isn’t much to see in Essaouira, although you can do a lot of ‘wandering around the streets’, which is something I also enjoy. However, I’m mainly interested in museums, mosques, historic districts, etc.)

I also have a few questions; mainly: how would you recommend getting around your country? Should we use public transport or hire a car? And what would you recommend for accommodation in the desert? Is there an agency or similar that organises this?

We’ll be going during the first two weeks of June. Thank you very much for reading.