We'll be driving from Montepulciano to Assisi on a May Sunday, and are considering a lunch stop at the lake. The Slow Food Guide suggests L'Acquario in Castiglione del Lago on the western shore. Michelin suggests Da Settemio in San Feliciano on the eastern shore (near Magione, which I suppose would be dispositive if the town were called Mangione -- but I digress). Any experiences with either of these establishments to report? Or alternative suggestions?