This is a really nice place, despite how it might appear from the outside of the building! The surrounding area looks a little run-down at first appearance, but it never felt unsafe or anything like that. It is really close to all the amenities downtown. The streets are very narrow and steep in Porto, including where this is located - so be ready for some good exercise when walking!The apartment itself is very clean and well kept - it has obviously been refurbished recently (and thoughtfully!). The high ceilings and original structure meant it was a little cold (I was there in January) in the evening, but nothing that supplied electric heaters couldn't fix in a few minutes!
I'd definitely recommend it to someone looking for a place in Porto.