Our stay at Gustavo’s was nice. The place is well located a bit outside the main touristy areas (a good thing) but within 10 mins walk of all the main sights of Porto.
Apartment was pretty humid though despite the air dehumidifier that they provided us. We went end of Sept season so it was nice enough to sleep with the windows open which helped.
There was also a really loud construction happening in an apartment above (sledge hammer) which woke us up very early on Monday. Good thing we only stayed one night during the week (when they do construction) otherwise it would’ve been very hard to stay at this place. This is probably circunstancial but I would check with the host before making a booking.