We had a great stay with Manuel and Teresa in May. Unfortunately we arrived at Porto later in the afternoon and had only that day to visit the city. (On a side-note: This city definitely deserves more than half a day!)
After our arrival, Manuel showed us the most important things to see on a map, we arranged the breakfast time for the next morning and off we were to the City. Manuel’s tips lead us to the right spots, and we enjoyed his dinner recommendation in the evening.
Manuel is planning to open up a small business (Look for "A Day in Porto" on Facebook). I think he'll make a terrific tour guide!
The best part about staying with Manuel and Teresa is most definitely the breakfast. Teresa devotes all her attention to serve some homemade cake and jams - delicious!