We had a lot of fun staying with Carlos. The tent was very new,clean and the perfect size for 2 people and luggage. The bathroom and kitchen area is very clean and tidy. We haven't been camping for a very long time so was a lot of fun and having a pool was a really fun touch. Carlos was extremely friendly and always offered us good advice on where to go.
We would suggest having a car if you stay since its a bit out of the way from sintra, however there are useful buses near by as long as you time it correctly.