Marco's place is in a super location (so easy to get the the bridges or bus station) and is a lovely and perfectly clean apartment. The stairs are exhausting but great exercise if you're fit.
The apartment is worth staying in for the views, terrace and location alone. Unfortunately, during out stay there were a couple of issues (electricity cutting out, broken shutter, wi-fi delay) but Marco was great at being in touch. The other slight wrinkle was that the king size bed is actually two single beds of slightly different heights... That said, we felt lucky to be there and had a lovely time in Venice.