We stayed at the hotel Katy in September, cannot fault this hotel, staff were excellent, very helpful always keen to supply maps, timetables and information about the area.
Best restaurant in Viareggio was the La Chiesina pizzeria great selection of meals not just pizza,do not miss the fish and chip boats at the marina.
Went everywhere on the train,Pisa,Lucca even Florence no problems remember to validate ticket.
Pietrasanta worth a trip especially in the evening ,went on the train but be careful of the times taxi is expensive , restaurant vineria osteria very good.
Will return to Hotel Katy and Tuscany very soon.
Room 306.