From the airport to downtown and park area is very safe... Much like any other big city... The food is fantastic, people are friendly, and the tourist spots are comfortable if you don't speak Spanish .
March and September are the preferred months for weather...
Taking the steel mill tour up to the top rocked!
Also got to see a reenactment of the furnace being used... And to top it off... We got to go in the blast furnace... Pretty sweet.