Tram 28 is a very nice place to stay - exactly as on photos and description. It is very clean and has everything you need for a short stay in Lisbon. It is, as it says - rather small - so it is perfect for one person or two people (smaller ones, though) who know each other well.
Augusto was very communicative, always answering promptly, providing information, tips and basically all you need. We were very grateful for flexible check in and check out times.
Bairro Alto is an old and very vibrant part of Lisbon and close you can find very nice cafes and small shops. I would imagine that it would be difficult to find a parking close to the apartment, so better rely on public transport which works very well.
If I would be going back to Lisbon, I wouldn't mind staying in Tram 28 again.
If you are looking for a clean and small place to be your base while exploring Lisbon - this is it!