Aeropost Costa Rica - the good and bad
The good - packages normally get in your hands within a week and a half from purchased in Amazon
the bad - everything else . They change constantly the declared value of your package so their commission and custom taxes skyrocket. They do it despite you send them the pre notification with the invoice. They smartly change the value when it arrives to Costa Rica so you can't complain on time. Even after you ask for the excess of money back, they calculate a lower sum so you always will be screwed. Never use this company unless money is not a factor so you can pay 50-70$ for something you paid 20. Good luck