The B&B Hotels are not like a full service hotel. However they are less expensive and do the trick. We arrived late, so the hotel was locked. Had to call their call centre to give us a code to get in. Just know ahead of time that if you arrive after they close, this is what you need to do. The gate to the parking lot is locked as well. So just park your car and go to the front door, buzz their call centre and they will help you.
The rooms are small, but that is to be expected in Europe. There is no air conditioning or hair dryers in the rooms, so if this is important to you, plan accordingly. They offer a continental breakfast for 6 euros. It isn't overly impressive, but will do if needed.
Overall we were satisfied with the room, we weren't there very long anyway as we were out touring. It was easy to get in and out from the highway as it is on the outskirts of Caen, we never had to go through town.
I would stay here again, just bring a hairdryer. It is a cheaper alternative.