We've found that it is the cheapest to book directly with the Hyatt Ziva's website, rather than any outside companies.
We recommend reserving a ride from the airport to the hotel and ubering or having the hotel call a taxi from the hotel back to the airport. We reserved a ride from: https://www.viptransportationloscabos.com/ They were very professional and had great communication via e-mail leading up to the trip. Ubers and Taxis are also available, but beware when you first land and head out of the airport, there are many people trying to grab your attention and talk to you until you actually get OUTSIDE of the airport. You know you are in the right spot when you've made it outside and see a bar area. You are in the safe zone. :) Ignore the people before then until you get outside.