The small room is bit too small for a long stay, but has a balcony, so you can dry out the clothes. The balcony is separate. The bigger room has more space, so we liked it more.
You can get in 10 minutes by foot to Sintra mountains and restaurants, 1 hour by bus to the ocean with great (also wild) beaches and 1 hour by train to city Center.
Thank you Filipe!