My summary:
Getting there. Don't waste you time and energy fighting the crowd at the A,B, C,D ferries. It's crazy with luggage! Costs 2 people 15 euros! Just hire a water taxi for 30 euro. Well worth it. They can drop you near wherever you are going. Walk will be minimal.
Location: can't beat it. In the heart of San Marco. Getting into the place requires entering two secure gates usually closed. You have to walk up 4 flights of stairs to get to the entrance (at the top, only entry). Felt like the penthouse!
Property itself: hard to find. Fortunately I used Google maps to find it. If you don't, it will be hard to find. Too many ways to get there. It's a maze. All of Venice is that way though.
Inside: cute and/but old/original. Wood shutters, low water pressure in kitchen, updated bathroom. Few free outlets to plug things in.
Beds: they are two hide-a-beds built into the couch in separate rooms that do not have doors to shut off the room. They are on opposite sides of the apartment separated by a small bathroom and small kitchen separating the two. Surprisingly, it was okay to sleep on. My wife didn't notice any difference to a real bed.
Kitchen: no oven no microwave if you need. We did not. Minimal dishes, no dish-soap which was weird. Stove needs manual lighting with a match/lighter. (Provided). No plugs in the kitchen.
Outdoor seating area:
Has the potential to be very cute. A plant and a table cloth would have made it a nicer/romantic area. Perhaps some candles.
Summary: If you need to feel like you are at home, this place is not for you. If only 1 night its fine. Communication was great up to when we arrived. We were met at the property, lead up stairs, given the keys, passport provided, then "when will you checkout?" This is not welcoming talk.
In the AM, I didn't receive the customary "hope your stay was nice, please remember to leave the keys... on the table". I shouldn't have to ask where to leave the keys. That is the host's responsibly.
Venice is hard to get around. Since you charge for late check in why not charge for private escort from the train station? That is service and a statement that you want to really help your clients.
Overall, we liked the place because of the location like most will. However, things like somewhere to hang your towel in the bathroom and a trash can somewhere, anywhere, would make the place seem more personable and welcoming. This is no one's full-time home. Right now it's just a place in "San Marco" trying to make a buck and will.