The location of this apartment was amazing. Literally walking-distance to all main spots in Porto, but also in a quite city perfect for a good night sleep.
The place had everything we needed to be comfortable. Living room was tiny, but the bedroom and kitchen was good for us (a couple). Lot's of closet space was available.
Only note is, there is no elevator. It wasn't a problem for us, but be aware of this if you're traveling with a lot of luggage.