The stay was amazing.
The hosts were super friendly and helpful and met us both during check-in and check-out. The apartment was very comfortable, super clean, had everything one might need and felt like the owners thought of everything - chargers, adapters, masks, iron and so on.
The location is right next to the main shopping street of Buenos Aires, and is roughly 30min walk to the Duomo through nice areas and a park, which also was a very walkable distance. If you're not a fan of walking, the metro stop which goes to the center is very close.
I would definitely stay at the place again and highly recommend it too.