The hosts at Porto Alegre were very welcoming and helpful.
We were staying with 2 couples and a single, and even though there were 2 bathrooms, the half-bath was outside (although closed in and on a porch). The main bath is nice, with a tub and shower, but there is a large window over the tub that shines into the bedroom when someone turns on the light at night. The beds were very comfortable, and the towels nice. The 3 balconies were great, one off each of 2 rooms and one off the living room. The apartment was very clean and very close to several restaurants. It is a very short Uber ride to the river and the sights in the old quarter.
All in all, I would recommend staying here.