Went on a shore excursion. Why don't you contact the stores directly with your question. I am sure they would do anything to get you into the store.

We have visited two shops. Both were larger and more touristical.

Yes. I recommend doing that and catching a ride fairly early in the day if you want to enjoy not only browsing the shops, but a leisurely lunch, and perhaps to watch some of the glass blowing or mosaic creation. It does not have to be a private taxi. I have used the "taxi" term rather loosely to include all the regularly scheduled water boats.

Not sure but you certainly cannot miss it so I wouldn't worry about having rhe exact address if that is why you are asking

I guess its open because the tour operator of a boat that leaves for the islands told me dey have this tours all 7 days

From what we saw when we were there they 'coral' everyone into the demonstration first before allowing them into the store. I believe it is this way to control crowds so that only so many people are in the store at the same time. However when we were there we were seriously interwsted in purchasing a large expensive original piece so we made our request known and we were taken privately upstairs to the factory's art and museum buyers area. Wow it was a real experience! A private experiwnce where we were left at peace to take our time and explore and there were thousands of unique pieces. Each artist had an area and a book with their works of art in it and you could buy or order any of their pieces. So, you may want to try this approach ro avoid the show. The glass pieces on the first floor are the tacky tourist items and although nice they are not like the real Murano Glass pieces that are serious pieces for collectors and museums. The prices of the museum quality pieces are of course not cheap either. Hope this helps

When visiting Venice, we bought a 4 day pass for all public transport, the water buses take you to Murano for the glass and Burano for the lace. This is the cheapest way to explore Venice, I suggest you buy a ticket for the amount of days and not per journey, that works out very expensive

Cannot remember I think it was the 7 but you can ask foe the most direct vaporetto at the ticket booth and they will tell you so as to avoid the 'milk run'