My work colleague and I stayed here before a business trip- Sabina was very flexible with check-in and let us drop our bags off early so we could explore the city. We didn't actually have the chance to meet Sabina, but her roommate (Elisabeth, a PhD student) showed us around and we didn't see her at all after. That could be good or bad for depending on your taste, but I loved pretending I had my own apartment for the few days we were there. Location was wonderful- easy to access from the airport (via Aerobus) and close to the Rossio station that let us explore Sintra for the day. Highly recommended.