Chile requires you to go by private transportation directly to your hotel and stay in your room until you have the results.
The Hilton Garden Inn link you reference would indeed be a great option - but are you allowed to leave the airport w/o the test?
There’s also the question of whether any PCR test result can be used. For example, the company linked above also offers in-house visits for an extra fee. Can I have them to come to my quarantine hotel room to administer the test? Or is whatever test the government is (presumably) using at the airport the only thing that counts?