First of all: I really enjoyed staying in this Airbnb! Maria is always available for me, responding very fast and is willing to help.
The check-in was a bit hard because she had no time and her maid took over - her maid is unfortunately not able to speak any english word and I was at that moment not able to speak any Portuguese word.
Besides that, the shower could be more clean. But it was nothing big to complain about.
The location of the Airbnb was perfect for my purposes. You have to walk 10 mins to the city centre or 20 mins to Gaia (that's where you find the portwine). And next to the Airbnb is a very big metro station as well.
If you need to work, I would recommend to book a co-working office nearby. The WiFi in the studio is okay for a bit of surfing and maybe streaming a (low quality) movie. Not working for heavy tasks. Vertical Co-working is a very cheap but good office nearby. I paid <100 Euros for two weeks and 24/7 access.
All in all, I can recommend this Airbnb and would book it again next time!