Just back from 4 days there, stayed about 200 yards from St Marks Square in a lovely 15th century hotel, small and smart on the very edge of Costello. Not as busy as I expected but not quiet obviously. Also not as expensive as I thought it might be. Very friendly people, loved the place, beautiful. Great food and drink and walked just about everywhere you can walk, getting a bit lost and finding our way back again, great fun. Temperature was mid 80s. Definitely will return.