The hotels on Boulevard Mohamed IV are generally very good. They are the most convenient for visiting the city. They are next to the shops and not far from the Medina.
Taxis are not expensive. If drivers refuse to put their meter, refuse and wait for another taxi (it happens all the time). Otherwise negotiate the price before going up. An average run from Ave Mohamed VI to the Medina must not exceed MAD 30 (Moroccan Currency) with a legal surcharge of 50% per night.