I agree with the above commenters, pick one of the services that has a booth before you exit the baggage reclaim area. It will be a couple extra dollars, but completely worth it. I actually ended up using Uber to/from the airport a number of times last October. The primary issue I had with Uber was that there was no specific place the drivers picked up at the airport. The cars were always parked in short-term parking across from the terminal, but sometimes the driver was in their car and wanted me to meet them. I was able to meet-up with them by texting through the Uber app (in Spanish) to meet-up, but it was not as easy as I had hoped.