Can only say positive things about my stay there.
I was a bit worried about reviews saying there is a damp smell, but I didn't notice any. Heaters and dehumidifiers do wonders)
Now, the best thing about this place is the location! You live pretty much right in the middle of the coast line. It's about the same distance to walk to port and to walk to the bridges. I really love walking and I walked all through Porto area. This place offers a perfect location if you enjoy coast walks, or if you want to Uber anywhere in the city.
There is a supermarket about 5-10 mins walk, and a small store about 2 mins away. Bus stops and tram are all in the walking distance (couple mins at max).
My plane was late (well, couple days and later in the day), and check-in was smooth and easy. Hosts are always reponsive and will provide you with general idea of what's where nearby.
I'm looking forward to come back to Porto and this place in particular!