We stayed at Izumi's place for 2 nights during our visit to Sintra.
The self check-in instructions were very clear and straightforward, though we struggled a bit upon arrival trying to find the place and handling the door locks.
The location is unbeatable, right at the heart of the historic center with lots of attractions, cafes, restaurants and shops within walking distance.
Bear in mind that parking could be an issue, we got lucky finding parking nearby.
The apt is well equipped, relatively quiet, well lit by natural light during the day and dimly lit night time.
The garden is by far the unique selling point of this property and is a true gem.
Overall we had a great stay!