I loved my stay at The Old Corner house! Carla is everything you could want in a host; always quick with a response or recommendation. She's awesome!
The place itself is exactly as advertised. It was super clean and quirky and cosy. I really like it.
Bairro Alto is a very lively area, and hence noisy, but I didn't have any issue getting to sleep. Once you close the shutters it's like white noise which actually helped me sleep, if anything. I brought earplugs but ended up not using them.
You will be surrounded by cute restaurants and bars, so many to choose from. Have fun!!