This place is awesome! If you are going to be staying in Sintra with family or friends, this is the place to be. Less then 100m from the Portela station, it is clean, modern, bright, and airy. Lots of space, kitchen is well stocked, beds are comfortable, and everything is easy walking distance. CP Lisboa is an easy 40 minute train ride into Rossio or Oriente as well. The internet is great, strong across the entire apartment and fast, laundry onsite, everything you could ask for.
On top of all of that, Fernando and his wife are awesome hosts, they really deserve the super host status. They showed us in, got us all settled, and answered all of our questions right away.
Overall, a 5 star stay for sure. We really enjoyed ourselves and think you will as well.