Great location and view of Lisbon. A bit of a hike to the apartment and steep stairs so be prepared. The balcony was the best part of this apartment but would have liked to be able to sit on more comfortable seats (wooden) so could enjoy the view for longer. Bed a little uncomfortable as creaky and mattress a bit on the thin side. Kitchen basic but functional and had everything we needed (but just 2 of everything so be ready to wash up ;). Air con is good and easy to use however is is located in the main part of the apartment so you have to leave the bedroom door open to make sure you are kept cool at night (which lets in a lot of light as the main part of the apartment has no blinds a large windows), there is a fan but ideally you should be able to utilise air con at night.
Location is good for most sights but be prepared for a lot of walking. We went to the Rock in Rio festival and apartment was great location for that. All in all a great stay.