Your best discovery?
Without a doubt, the Central Havana area. Most tourists focus only on Old Havana, which is clearly spectacular. However, in the downtown area the reality of the city is more present: the people, the music in the street, the children walking home from school, and even the type of currency.
Something everyone should know before arriving?
You will only use your cell phone as a camera. You disconnect to connect and be present in the moment.
Where should one go when in search of local culture?
FAC, the Cuban Art Factory, or the Experimental Graphics Workshop.