Staying at Tiago's place was very nice. The apartment was in a great location and had a lovely view. We took our kids and there was a special crib, chair and bath for our baby. It also had an elevator so taking our buggy upstairs was no problem.
Everything we wanted to see was within 30 minutes walking. Lisbon has a lot of hills so we mostly took a taxi or uber on our way back. That was mostly 5 - 10 euro.
The communication was perfect and we always felt like we could ask anything we needed. Would highly recommend.