The apartment is perfect for a short or long stay in Lisbon. Simple, functional, impeccably decorated and clean, you'll find what you need for your daily confort: all the appliances and all the consumables for the day to day - you're home!
The host was very friendly, quick to respond and accomodating of our needs (we did a late check out and he was very understanding).
As for the location, my opinion is probably a bit biased because I have lived 14 years in Lisbon and I absolutely adore Graça! It's a charming neighbourhood, lively, authentic and with the best views. Extra points for the view from the apartment which is sublime! At a walking distance you'll find good portuguese restaurants and bakeries, including my favourites: Pastelaria A Cabreira and Restaurante O Satelite da Graça.
Near the apartment you have good public transportation (several buses in Sapadores and the tram across street). Also, riding cabs or ubers is very affordable in Lisbon.
Parents: even though you have to climb 3 flights of stairs with probably a little tired one, I totally reccomend you staying here. There no major hazards (it's well secured), and just outside the apartment there is a kids park for your children to play.
All and all our stay was lovely and I am glad to have found this place. I will definetly book it again next time I'm in Lisbon.