We only stayed 2 days
Host - very nice, helped us so much. Let us drop a bag off 2 weeks early so we could go to Patagonia without and travel a little lighter before our stay.
Shower - Stable hot water. (Temperature didn't change during the shower)
Internet - I work remote and it worked fine all day
View from window was nice and it was quiet inside the apartment
Bugs - None
Federico even provided a metro\bus\train card which is very easy to use and just a block or 2 from the apartment