The apartment is in a great location just a short walk from almost anything you need. The stairs up and down were arduous (they're not kidding when they say 6 flights) but that wasn't a problem for us! The place felt secure enough to leave our stuff, the bed was comfortable enough, the A/C was nice (though didn't quite reach the bedroom). Though this is Niccolò's listing, we dealt with someone named Tom and another person named Marco who let us in. Both were nice and helpful. Tom sent us suggestions of restaurants to visit and we ended up doing several of them and enjoyed the meals!
The only negative is that this place didn't have an iron or steamer (though it did have a washing machine). I understand irons and steamers are uncommon and sometimes not allowed in Italy, so it's okay that it wasn't there. But, Tom asked if we needed anything at one point and we said "Do you have a steamer? If not we can go get one down the street" and we never heard back. It made us feel like the message "Do you need anything" was mostly rhetorical. Oh well, everything else was great!