yes we love this area been many times,stayed at les rivages with family kids etc also agguassac,before the bridge was being built,so going back there as just us two this yr.
We too are very fond of Millau and have spent lots of time there over the years. Now we call each way on our journeys to and from the south in the Autumn. I can recomend Camping Les Rivages,in the ACSI book.We particularly like the surroundings and being in walking distance out of the town where they have an excelent market on Fridays. The journey down the A75 from Clermont Ferrand is a delight with fabulous views and easy gradients.
Regards David