There was only one way to know whether or not these excellent reviews were telling the truth. Booking Mouzinho 134. Which I did.
There is nothing that I can say that hasn't been said already
Enjoyed it very much and would book this apartment again!
Special thanks to the lady of the house, Eugenia.
PS: book the full day Vespa tour experience with Oportoshare. Had a magnificent day! If not you'll have to discover Porto on foot. Bad idea due to the very mountainous environment.