No air-con in room 1 - Trieste - but the day I left, the fans were coming in for the hot weather. The room is great for solo traveller with a tiny single bed against the wall plus window that opens.
Loved everything else.
Very good location right on Piazza S. Giorgio, but you have to climb down to the harbour so don't stay here if you have walking difficulties. In fact most of Varenna requires climbing. To get from the railway station, you need to walk down hill, including one set of stairs, so don't bring a large suitcase.
Francesco and Enzo from the hotel were very friendly and helpful and breakfast thankfully wasn't the usual buffet, but individually served by Enzo, who told me of a spiagetta close by for a swim in the lake.
Extremely delicious meal in the restaurant.