The place is fantastic! Exactly as pictured -- incredibly spacious, clean, and trendy. They were really great about communication via WhatsApp and had some really good suggestions for us on things to do and places to go around the city. The location is perfect for walking basically everywhere, though be prepared to go up a few flights of stairs to get to the flat. It wasn't too bad and wouldn't stop us from staying there again, but if you have problems with mobility then another place might be more suitable.
And a huge plus is that there is an absolutely fabulous restaurant across the street that you must try if you stay here. And another plus -- a delicious bottle of Portuguese wine on the house!