Juan is a great host. He goes above and beyond what is needed. We took a day trip to Porto and wouldn't have time to purchase necessities like toilet paper, dish detergent etc before the supermarket closed, but we contacted Juan and he left our supplies sitting on the table for when we arrived home. I also did not have a hat and Juan graciously let me take the "house hat" to use for my next travels.
There are some nice touches around the house. My favorite included a heated towel rack, which doubled for us as a clothes drying stand.
I would say one thing we were surprised by was the lighting - it was definitely much darker than the photos suggest, but overall still a very cozy place to explore Lisbon from.