Andrés was great, we enjoyed his tour a lot and I think everyone else did too. Only thing I would suggest is for the company not to make the tour simultaneously in 2 languages, it’s not announced and wasted time.
Very nice trip and well organised! We had the right amount of time on each island and 4:30 is a great length for that kind of tour. Torcello is not very necessary to do: Murano and Burano are definitely where you want to spend the most of your time!