Going to Hana is perfectly fine, the only thing I ask is you go the front side through paia and do not try to drive the backside of Hana, once you reach Hana go back the way you came. All rental car companies on Maui forbid you to go backside as it is unpaved and rough terrain for many miles. Thank you and enjoy Hana !
Please vacuum out car when you are done, just leave it same cleanliness and gas as when you picked it up! that is all super easy! Mahalo for renting and thanks again. Reach out with any concerns/questions