Mercure in Rabat has a nice hotel, it's pretty cheap compared to the other Accor hotel in Rabat downtown (Sofitel, better, but much more expensive) and is much better located than Ibis, that is on the suburb of Rabat-Agdal. Rooms are pretty ok, although the bathroom "seemed" unifinished as you could see the water pipes going at floor level, but other than this small ugliness the hotel was ok.

We stayed on a Cosmos/Archers Tour for one night. Not the standard that we had expected. The downstairs had had a make over but the bedroom and bathroom were poor. I thought revamps started on the top floors.
The staff were rude and dishonest . Happy hour did not exist and staff tried to rip you off. Our Party were nearly coming to blows with the staff until the tour director and our local guide intervened to get our 2 for 1 drinks.

On a Cosmos/ Archers tour stayed at this hell hole. Public rooms are ok but wait until you get upstairs- sheets a delightful shade of grey-bathroom filthy-plumbing appalling.
The towel rail fell off the wall and there was a hole in the bath. Stay away from this place.

I thought it would be nice, belonging to the Accor chain. It's not. Room was incredibly small, dirty, dingy, no heating (I was there in the winter) and I got sick in the restaurant. For what you pay, go somewhere else, definitely not here.