We loved our stay in Porto and we loved this apartment.
It is in the most perfect spot, in the middle of anywhere you would most likely want to go whilst visiting Porto. There are plenty of restaurants, cafe's, bars and independent shops on your doorstep, its lovely having the balcony doors open and watching the world go by, but come night time, with the windows and the shutters closed the apartment is very peaceful and I had the best nights sleep.
Isobel and Igor were great hosts, coming back to us promptly when we asked them a question.
If I was coming back to Porto I would not hesitate to book this apartment again.