Just book it!
Everything is exactly like the photos (even better in real life!), the view is simply outstanding, make sure you wake up to enjoy to magical sunrises!
Everything you need is provided and Diogo and Joana are very quick to respond. We had a few issues with wifi that weren't their fault and they were quick to resolve.
Yes the elevator is a little noisy but unless you are an extremely light sleeper you won't wake up in the night.
Good location, walking distance to the main tourist parts (like the castle) so we would usually walk to where we wanted and get an uber back to save our legs!
Really amazing place, one of my favourite AirBnBs and had lots of friends commenting on photos asking how to book!