Me, my wife and our son stayed in Porto in Joana's apartment for two weeks and everything was great! It is placed in the center of the city, so we could walk everywhere. It is about 10-15 minutes to the riverside and Luis I Bridge and 20 minutes to Wine Caves. We often went to the beach in Matosinhos, it is about 20 minutes on the bus.
There are lots of inexpensive cafes and restaurants near the loft. On sundays on the square under windows there is the Bird market, so sometimes you would wake up with rooster's crowing :-) We were lucky to get on Saõ Joaõ celebration (23rd of June) — it was awesome, and all of the action was near the loft.
Apartment had everything we needed, including oven and microwave (unfortunately except Nespresso). It is very cozy and soulful place, we are happy that stayed here! Joana, thank you from all our family, it was one of our best vacation ever.