The Apartment is located in an excellent area of Porto very close to the river front. It is three floors up without an elevator so could be difficult if you have restricted mobility. It is quite an old building, and quite simply furnished with some lovely features such as original wooden shutters. It is very clean and functional and has pretty much everything you need (only things we found missing were a microwave for drinks etc and a washer).
The host Raquel was excellent - very quick to communicate, friendly and gave us lots of recommendations on places to see, restaurants etc. We thoroughly enjoyed our stay.
Health Warning - Porto itself is built on steep hills and there are lots steps and inclines to climb. You need to be reasonably fit to get the best out of it.