We had a wonderful 12 night stay in Vila Nova De Gaia at OPorto2All Apartment. Our hosts were helpful and quick to respond if we needed anything. I cooked a lot in the cute kitchen and the beds were very comfortable. The Apartment is a 2-3 minute walk down to the waterfront and a 15 minute walk across the bridge to Porto. We also walked to the beach on both the Porto and Gaia side. It was a great walk (both) and it was an hour each way. It is an easy area to explore by foot, but there is also public transport. We took a day trip to Braga via train and it was great.
We enjoyed the patrons at the bar below...they were having a good time. In past reviews people mentioned it was loud from the bar, but we were prepared and wore earplugs to bed and did not have a problem sleeping at all. There is decent wifi, not great but works great if you are just emailing, texting, etc...not good enough to stream. There is a paid parking lot on the street for 17 euros per day. There is also a free parking lot, but it would be a long walk. Also note that the apartment is on the 3rd floor without an elevator, which was not a problem for us.
Thank you very much!