I went with my 10-month old daughter, husband, and mother. Communication with our hosts was easy and they were accommodating to our later check-in time after a last-minute flight delay. The 4 flights of stairs were daunting but did not affect our experience when all was said and done. The appartment is big, bright, airy, and clean. It is located in the centre of Lisbon, close to the river, shopping area and the narrow streets of Barrio Alto and Alfama. We were able to walk to 3 of the miradors (viewpoints) for sunset. We ended up booking a Sintra excursion with Nuno, who is personable and laid back. I would recommend this place to my friends and family.