This place is as advertised: roomy, private, space for groups/families in a great location. We were a group of 6 adults and lived in this space comfortably. Especially since there are 2 bathrooms and a kitchen. Air conditioning and heat works well which is a huge bonus as the summers can get quite hot, we went in September and though we were greeted with cool mornings, so if the unit you are considering doesn't have an AC unit, it could get quite stuffy in the unit. There was also a small lift in the complex for those who couldn't do stairs, but I wouldn't consider it full accessible as the lift doesn't look that it could fit a wheelchair. We've only used the lift to bring the luggage up and down.
As for the location, its in an University area, we didn't have any issues with noise and it was extremely convenient location (about a 15 min walk to St. Mark's Square and about 20 mins from Rialto bridge, that is if you don't get distracted on your way there). It was a prime location for local cheap eats (definitely more affordable when you compare to drinking an espresso in St. Marks, yikes!). There are many highly recommended local spots for your early morning espresso & croissant, quick lunch bites (pizzas, sandwiches, pastas) or to even wind down in the evening with a nice dinner (seafood platter is highly recommended) and a few glasses of wine. It was also close to the local produce and fish booths (which is located in the nearby Square), we were able to buy fresh razor clams and shrimps! Though the locals spoke limited English, we were greeted with exceptional hospitality and even learned from the local fisherman you could consume razor clams raw and they were heavenly!
Overall, the space was spotless and Rita was extremely helpful and had made us many local recommendations. Not to mention, we had a simple & seamless check-in and check-out. In addition, Pietro included the Venice City Tax in the price, which made the process straightforward, many of the units I had looked required us to pay the tax upon arrival (which could take some people by surprise if you don't read the fine print).