We really enjoyed our stay in sintra in this apartment; the location is great and within 2 min walking you are everywhere in sintra. Parking was super easy for us, but maybe this was because it october, I imagine it is different during high season.
The apartment is nicely decorated, really spacious and has a great view. Apart from some small details, it was very clean. The kitchen is not big and is lacking some things, but you can make it work to cook meals and prepare breakfast.
For the price, we can definetely recommend staying here!