By TAXI... from the airport is the best option, 25 minutes, $10 USD = $25.000 colombian pesos and you just give the adreess and they know how to get here by Calle 26, then avenida Circunvalar and then calle 9 and carrera 2.
By BUS... is super easy too, about 1 hour by the green bus from the airport is free and them the red Bus (transmilenio sistem) go to STATION UNIVERSIDADES. and from there you can walk or better a taxi $2 USD = $5.000 colombian pesos.
From the BUS TERMINAL:
By TAXI... is just $7 USD = $14.000 colombian pesos and 20 minutes.