Vacationing in Loire valley for week
Chinon is definitely one of favourite towns ( for a typical french experience in good central location stay at Diderot if you can get in but not luxury with lifts etc!). Try L'Annees Trente or L'Oceanic if you prefer fish. Would also thoroughly recommend Diane de Meridor in Montsoreau ( great good value lunch menu and ask for table overlooking Loire). These are all good value and great food
Bon Appetit if not too late!