The Bica area is a typical area locates in the center of Lisbon. I think you know that Lisbon is a capital city in Europe with a lot of entertainment and animation. As for the peaceful and tranquil places where you can have a perfectly good rest, they are located in other areas of Lisbon. For example, I would like to recommend Sintra.
Regarding the height of the apartment, it is a very typical house of the area. In the house introduction there are at least two places which referred to the height of the ceiling. Didn't you read it?
As for the AC, it already was clarified that there was no AC in the house introduction. Didn't you read it? And I'm sorry Hannah, it wasn't hot during the days when you were in Lisbon. So I think that you didn't need the AC.
I think your comments are unfair and even a little bit fool. But of course among more than 300 guests who stoped by Kasa da Bica, there were always someone different and I respected them.
To avoid having comments like the ones you did, I recommend that you should read the house introduction carefully before booking in the future.