Tina was a great host! She even picked me up in Sintra on my way to Ericeira and dropped me off at the airport in Lisbon at the end. While i was there, i could use her bike.
The place itself is perfect if you want some privacy. It is really like a small apartment, clean, quiet and with everything you need. The only downside is that, as it is quite humid and no air circulation, it felt a bit cold and damp at night. But there was an electric heater, and in the summer i'm sure it's no problem. For the price it is awesome, so I highly recommend this location if you want your own space!