Carla was a really lovely host, easy to get hold of and so friendly. The Old Corner House is charming and very clean. I loved the thoughtful touch of liquor on arrival.
That said, we probably wouldn't stay again. I did notice other reviews mentioning the noise outside, but, it is unlike anything I've heard before - on Friday and Saturday night it went on until around 5am and was deafeningly loud. I didn't sleep at all on the first night and bought earplugs for the remaining nights. If you are going to stay here, definitely bring earplugs!
The apartment was generally uncomfortable. With the exception of the lovely sitting room, which is light and has plenty of space to sit. The bathroom is teeny tiny and very difficult to get changed in. The bedroom is a real challenge - I am not that tall and I couldn't stand up anywhere in the room, this makes everything more difficult. Also, the stairs up/down to the apartment are very narrow and very steep - if you have any kind of mobility issues this is not the place for you - I don't have any issues and these stairs still made me nervous and were also not a welcome sight after a long day walking around hilly Lisbon.
I feel like The Old Corner House is one of those places that you might love enough to overlook all these things. We had a good time and could look past it on the whole, however, there were definitely moments where the lack of sleep and space proved frustrating for us.