I've been using Airbnb for the better part of 5 years and i don't think i have ever come across a host as communicative and be vested in you having a good trip as i had with Sergio. Communication was almost real time with responses coming through almost the moment they were being sent. The advise given and the guidebook develop by Sergio (it is truly amazing) was definitely a trip enhancement and was used extensively throughout the trip.
The apartment itself was all one could ask for in a place and location. Stylishly decorated and very well appointed, it was truly a comfortable for for the three of us (myself, wife and 8 year old son). Central to the city and generally easy to get around, it was probably as perfect a location as one could ask for.
I don't think i could recommend the apartment and Sergio more. Thank you for a wonderful trip! Look forward to visiting Lisbon again!