Porto is a great city to visit, we got a warm welcome from Pedro with some instructions for the appartment and some great tips on what to visit ( local stuff ! )
Location is great close to subway/bus/train so you can go anywhere. If you plan on walking a lot like we did, the most was located on the other bank so you have nice long walks ( but we liked it)
However did have some CONS to the appartment- Really noisy as it is located in a busy street ( people, transportation) , other residents making a lot of noise + elevator sounds and had some issues with the hot water.
Nevertheless Pedro’s place is great if you are not a troubled sleeper and enjoy a nice walk.