We stayed for a weekend in Tiagos house and I can confirm all statements written from the other guests.
We felt like staying in a friends house.
The organisation was perfect. Tiago welcomed us very kind, gave a lot of tips, where to go and what to do.
The location in Alfama next to the castle is perfect. It's very quiet, which is not always the case in such a busy city.
We highly recommend this place!!!