On the front of a promotional leaflet from the Domaine de la Tuffiere is a stamp from the Vignoble de Loire Cave Touristique organisation with the words underneath "Certificated Accueil d'excellence". Now I don't know what the exact translation is but it suggests to me that you get a very friendly welcome when you visit the Domaine. The welcome we got from the sisters in law who run the Domaine with their husbands certainly exceeded expectations. This really comes across a welcoming family run operation where the visitor is made to feel special.
The Domaine is very close to Angers Airport. If you can find it - as it does appear to be in the middle of nowhere - it is well worth a visit either when you arrive or on the way back to the airport.