We had a great stay at Maristellas place. The quiet inner courtyard was one of the highlights for me - literally 15 steps stepping out of the apartment there where these masonry "stairs" decending into a smaller side branch of one of the canals, that was quite a sight.
Despite being 3 different generations (my nephew, me and my mom (nephew's grandma)) we managed to fit in the apartment comfortably.
Bathroom not having a latch (or another way to block entering) was a bit awkward but luckily we managed without any incidents.
This doesn't reflect on Maristellas hospitality but BEWARE if you have kids, make sure they do not run into locals or interact with their pets, we had an extremely vulgar run in with an older "gentleman" (my nephew had been following around his cute little doggy that he apparently lets roam around taking selfies) worse yet all his expletives were in English (we are native Latvian speakers but my 11 yo nephew understands English very well)
Although this is probably true for all of Venice (as the elderly locals are sick of the millions of tourists)
P.s. 5 minutes walk from Maristellas place is a boat stop for an Alilaguna boat that will take you to the footsteps of Marco Polo airport - easiest airport commute I've had in my life!