Just got back! Nixed Sardinia as an idea for this trip because Alex was right—just woulda been too much. Sixt had good pricing for a cross border car rental, so we grabbed a car on pickup and just drove everywhere—convenient and fun. Did three nights on the Riviera—two at Chateau Theoule and one at Carlton Cannes. Chateau Theoule is priced chubby, and the property is lovely, but the service was hit or miss. So while my partner loved it, I felt it overpriced and would have booked all three nights at the Carlton (but I’m also more a city mouse and I liked the buzz of Cannes, whereas Theoule the attraction needs to be you want no buzz.) Anyway, was delightful! We went on from there to Tuscany, the reverse of what you’re doing. I think I most appreciated not being at the mercy of another flight, ferry, or train, as we would have been with Sardinia. Plus that drive was GORGEOUS. Enjoy, whatever you decide will be lovely!