The apartment was excellent and exactly as described.
Check in and check out we're easy.
Communication was also excellent - clear instructions before and at check-in, and multiple check ups to make sure we were ok and to ask if we needed anything throughout our stay - the PDF doc debt to us (local places to eat and visit, and apartment instructions) were really clear and helpful.
We've visited and stayed in apartments overlooking Plaza Dos de Mayo a few times before, so we're prepared for the noise til late into the night/early morning, so not an issue for us - the Airbnb description mentioned this, so be aware of it if you're deciding to stay. However with the windows shut and shutters closed, it's absolutely fine.
Fully recommend a stay here!!!