Daniela's place is close to shopping, Metro station, Hop on Hop off bus stop and some restaurants. It was only about 15-minute walk to the Se Catedral, Ponte de Dom Luis I, Cais da Rebeira, Rio Douro, Serra do Pilar, etc. There were a few restaurants that the locals frequent about a few hundred meters away. Majestik restaurant is about 5-minute walk away.
Overall, her place worked for us. It was rainy and cold for the most part of our stay. She has an umbrella that came in handy. The space heater also came in handy in keeping us warm when we got in from the cold.
Although her place is in the midst of busy traffic, it was surprisingly quiet inside, especially in the bedroom. The bed was comfortable that my husband even commented on how it didn't give him a back ache. The living room looks out to a park. There is a bar on the backside of the building on the ground floor, but the noise gets muted when the window covers (I don't know what they're called) are closed. The only thing is that the shower is tiny by American standard, but not so by European standard.