San Marco Square is a great place to stay, close to water transport and many attractions. The apartment was clean and fresh, we found the room sizes small - as probably all are, in Venice. The bathroom is beautiful, bed was comfy. TV was the best - we could choose some shows in English! Monica always communicated with us very promptly and was very helpful. We used the washing machine but didn't figure out the dryer function - but dried clothes on the airer with no problems.
Be aware that there is no lift, it is up 3 flights of stairs.
Air con was great in living room, and bedroom.
This was our first Airbnb stay.