My friend and I were very impressed by Casa do Valle. The rooms were bigger than expected and very clean. I loved the simple but homey aesthetics. They had a Finnish sauna, massages, a pool, a teeny tiny library, and a shared dining space. The grounds were very well kept and had an amazing view of Pena Palace and the Moorish Castle all lit up at night. Staff were helpful, informative, and friendly. It was like a ten minute walk into the historic center. My friend and I, both female, felt perfectly safe walking back up at night. I highly recommend and I will definitely be staying again when I return to Sintra.