I arrived with my family at the agreed-upon check-in time and rang the bell 5 or 6 times. No one answered. After about 15 minutes another guest happened to come home. He let me in and said that he experienced the same thing when he arrived. The accommodations are very basic - plywood kitchen with a hot plate, mini refrigerator, and a few dishes. The beds were hard and pillows were sparse but everything seemed clean. The wifi simply did not work for us. We asked Anne about it. She asked us not to bother her and told us to call her if we needed help with anything (a little hard with no internet). Anne blamed the wifi on the weather. It still did not work after the weather cleared. The location is on a busy street but we did not hear any cars at night. The pool was clean and nice.
I'll find somewhere else to stay next time I visit Sintra.