We stayed at Florencia's place for two nights.
Host: Florencia is indeed a super hostess! She explained everything very well, she provided information about transportation nearby, food places for all budgets and personal favorites. We already knew the area but her attention to detail and clarity was exceptional.
Apartment: it's exceptionally well taken care of, beautiful decoration, small but can perfectly accommodate 2-3 people. Perfect for our needs (we have a 4 month old baby).
Bed was very comfortable, appliances are brand new, good water pressure and hot water, TV with Netflix (not that we watched much TV anyways but it's available) and overall a great place. Armored front door adds a layer of security but it's an apartment in a building in a relatively safe area so security isn't a concern there.
The only advice for future renters: disconnect the landline if you don't want to receive 10 telemarketer phone calls in the morning! :)