Small flat but comfortable, warm and conveniently located for a tourist. Hot shower with good water pressure. Well equipped kitchen although no microwave and leaky freezer.
Host was very friendly, welcoming and fast replying to any queries. Steep stairs to access flat and tram noise in bedroom: it wasn't a problem for us but others might need to consider it. Trams don't run overnight but finish late and start pretty early.
In our opinion the worst bit was the sewerish smell in the flat at times intense (for what I know it's common in Lisbon). You have to use bleach every now and again. Overall a very pleasant experience. Many thanks!