Iris was an excellent host, the communication was always great and she ensured a very comfortable stay. The apartment was clean and had everything you need (and more! Lovely bottle of wine on arrival!), and the design of the place is relaxing, while very homely. There was quite a lot of noise from outside on the weekend, but Iris was transparent about this in the apartment description so no surprises - I would just recommend to future guests to bring ear plugs!
I will definitely stay again if I come back to Lisbon - Iris also supplied me with a detailed list of places to go which I didn't manage all of, so this is quite likely!