Best transportation Rome Hilton airport to our AirBnB

We will arrive in Rome on Aug 28 and staying at Airport Hilton Garden Inn. Whats the best way to get to our AirBnB from Hilton..Im thinking a cab but assume it will be expensive..is there an alternative. Welcome your feedback.

Sorry, crystal ball in shop. Where would your AirBnB be located?

near colleseum.

:)

Taxi is fixed rate 50 euros for the cab. Other than train or bus, doubt you will find anything else cheaper, if that what you define as "best"...a vague term.

Well, my question is... why stay at the Hilton Garden Inn and then transfer to an AirBnB the next day? Why not go straight to the AirBnB?

AirBnB is not available on that day