You couldn’t get a better location in my opinion, about a 7 minute walk to st marks square and about the same to Rialto bridge (if you don’t get lost, which you will, we used maps on my phone to get around). Real Italian feel about the apartment. A bar and restaurants virtually outside the front door. We had a hire car, so we parked it in Tronchetto car park (from Chiara’s recommendation) for two days and got the water taxi to the island, best decision we made, €21 per day and €14 per person return on the water taxi.