We went many years ago, unfortunately we stayed in a very quiet place where it was necessary to speak French - my French being practically non-existent we struggled a bit. Didn't find the locals particularly friendly and the tour rep told us she sometimes had trouble with them even though her French was fluent.
Remember going into one restaurant and I asked for a table for two, in French, the waiter shrugged his shoulders and indicated he didn't understand, tried again and again got the shoulder shrug. My DH lost patience at that point and said (in English) that he had never found it so hard to spend his money and that we should go somewhere else. All of a sudden the waiter could speak excellent English!