The flat itself is easy to find in Alfama, as it is a 3-4 minute walk from the Fado Museum. It is clean, tidy and cute but small as is typical for this area. There are some problems with the flat in terms of comfort, the bed is very firm with scratchy bed linen and a lumpy pillow. The shower is problematic - old drains mean you need to shower in short stages with a 2 or 3 minute break between each stage of washing to avoid the basin over flowing. But at least water pressure is good! I let the host know about this problem but she suggested that little can be done due to old pipes and old sewers in the area.
Please be aware of the check-in and checkout times listed on the flat - these are completely inflexible. As my flight came in late a friend from outside of Lisbon was forced to come into the city to collect the key for me! Had I not been able to arrange this I would have been forced to pay for a hotel.
My biggest critique regards the level of host communication. I messaged Katy with my flight time nearly a month before the trip. I followed up to ask about check-in details the day before the trip as she had not let me know. My first response from her came in the late morning the day of my flight - leaving me scrambling to figure out how to get the key as I was packing and headed to the airport. Similarly, I messaged her during my stay with a small question about logistics which went unanswered. I am an undemanding guest but basic communication is expected.