Guy and Vera's apartment is really nice and and a perfect alternative for staying in Lissabon. We stayed here for 4 nights and made a day trip to Lissabon instead. The house is perfectly located just a 5 minute walk from the railway station and the bus 434 and 435 to visit the palaces and castles. Public transport is very cheap in Portugal and it is only a 30 min ride from Sintra to Lissabon. We loved the recommended restaurants just around the corner and overall we had an excellent time in Sintra. Great value for money!