My boyfriend and I had a wonderful time at Roberto's apartment in Venice.
It's about a 15 minute walk in the center but it's actually in the most perfect and safest location to stay in. So nice to get away from the herds of tourists for at least a small portion of the day. There's a gorgeous park in front of his house that we sat in for at least an hour or two a day!
The only downfall was the construction going on in the house. It was extremely loud and woke us up around 8am, but it wasn't too big of an issue as we wanted to wake up and walk around early anyways.
Also, his apartment is only one water bus stop away from the beaches on the island of lido (which was wonderful as we needed a break from the central tourist attractions).
Definitely recommend this apartment!