This is a fantastic place for a stay in Sintra. The entrance is off a small alley of shops, and the apartment has a wonderful view. You can walk to Quinta and the Moorish Castle easily. It's a perfect spot.
Parking can be a bit tricky, but we parked by the train station, and used the app to add money to our parking when we needed to. It wasn't that expensive, and made things easy.
Christiane was very responsive, and Mr. Erler was a great host with plenty of local tips for walking and restaurants!