This is a budget stay which is good for an overnight stay in Sintra - excellent value for money, we paid under 70 euros for a triple room. You have to pay a local tax when you arrive which is 1 euro each in cash. It is super clean and nicely decorated. There are shared facilities - bathrooms, kitchen (you can prep basic meals) and sitting-room.
We arrived by car and there is parking in the local area very close but you can only park there for 4 hours at a time (2.60 euros for 4 hours was a bargain). As we were using our car to get to the major sites this was not a problem for us but you would have to return to 'top up' the parking if you wanted to leave it all day. The parking starts at 8am so we had to get up to buy a ticket in the morning - there is a person walking around checking tickets! The area is in the city centre which does not have much going for it unlike the historic centre which is a fair hike away.
Unfortunately, we were staying on a Friday night so were woken up a number of times from 4am with the market stall holders setting up directly on the 'square' where Maria's place is located. This is why my rating was less than I would give it had I not been woken up so much.
This place does the job for an overnight stay especially if arriving by train but it lacks the buzz of the historic centre.