Guidos appartement is really nice, clean and cozy! We really enjoyed our stay at his place. The area around the apartment is not so touristy, so it's a little more calm in comparison to the main part of the city. We enjoyed that. It's also really close to a supermarket and a ferry stop, so it's easy to get to the place when you're arriving in the city. However like others mentioned it's quiet hot in the apartment, you should be aware of that, but there are now three little ventilators, so it's kind of okay - it's Italy in summer! :)
All in all it's a nice place to stay if you're going to Venice and don't want to be in a really crowded place. Thanks!