This apartment's location can't be beat. Without giving away its exact location, let's just say it's very close to Bar Campanile (which is a decent spot for that morning brew).
It's a couple minutes away from St. Mark's Square, and food and shopping are just a short walk down the stairs. Because of its central/prime location, it can get a bit noisy, but it dies down after 9 or 10. The bells are also audible from the bedrooms, so keep that in mind as well.
Directions were very clear, and communication with both the host, Mario, and the (caretaker?), Paolo, were easy and concise. Paolo conducted the check-in and check-out process and helped us with securing our private water taxi when we departed.
The apartment is roomy and comfortable. There is a living room area immediately to the left upon entry with a large round table that accommodated all of our [work] clutter. Bedrooms are of ample size, and the bathrooms were clean and stocked with basic amenities.
The Internet was a bit hard to deal with. The download speed was about 10 Mbps and the upload was about 1 Mbps, enough to combat the basics: checking email, watching videos, etc. Unfortunately, this would not suffice for someone doing constant downloads/uploads of files or someone needing live streams, such as stock market software.
Despite the Internet issue, we thoroughly enjoyed our stay. The apartment was nice, clean, and located in such a great area.