Premiere Classe Rennes Ouest - Le Rheu 

This is a totally basic hotel that doesn't pretend otherwise, but it's very well managed by friendly staff. Rooms are rudimentary - essentially like a standard ferry cabin - but the showers are good and the beds are very comfortable. Above all, it's spotlessly clean. Bedside lighting is somewhat brutal and the hotel is close to a main road, so don't expect ambience but you should sleep fine. Breakfast (an additional €7.50) was reasonable value. Fresh croissants etc and homemade jams. Perfectly adequate.