This is a genuine chateau (would be called a stately home in the UK - think Downton Abbey). They have about 5 guest rooms and you get the run of the place, plus breakfast. When we stayed we were the only guests so we literally had a chateau to ourselves. It was magical. The gardens are lovely, you can sit out there or walk or whatever you want. About a five minute drive into Bayeux, very handy for the town and the Normandy beaches. Honestly, staying here was the highlight of our trip. Still can't quite believe we did it.
The housekeepers didn't speak English but we all managed to get by. The breakfast was VERY impressive.
The only warning - make sure you're going to the right place. I clicked on an address in the confirmation email that took us to a little housing estate in Bayeux. When I typed in Chateau des monts google maps found it correctly.