Me and my boyfriend really enjoyed our stay at Carlos place. He and his wife were extremely attentive - I don’t think there is a problem, that they wouldn’t solve for you. They even picked us up at the bus stop and gave us a ride to Sintra one day. The place has a well equipped kitchen, and even has bikes only for the guest. The place is ideal with a car, but it is possible to get around by bike and public transport. Azenhas do mar, which is a beautiful place by the ocean with a natural pool, is within 3 km, and I recommend everybody to go there. If we visit Sintra or even Lisbon again, we will be back :-)