We fully recommend Silvia&Edu's place; it's a very nice place to stay, super clean, tastefully decorated, perfectly equipped and peaceful, really a home away from home.
Silvia has given us a very warm welcome and provided every kind of good tips about places to go and to eat. Practically on your doorstep you have the amazing Livraria Lello, Igreja do Carmo, Torre dos Clerigos and cable car 22 for a nice city tour.
Excellent starting point also for a one-day trip to beautiful Douro Valley.
In a word, a wonderful stay! Thanks Silvia&Edu