I used the service on opening day, Tuesday, October 29. I felt the signage outside the terminal was good and we had to wait about 10 minutes for a shuttle. It was a quick ride to the new lot. The Uber line was really long but it moved well and there were plenty of lot employees getting people into cars. It took about 20 minutes to get into an Uber. When we had requested a car, we had been given a code and we just had to show the code to a driver before we got into the car. We had a very long ride as our flight into ONT had been cancelled and we were sent to LAX and had to get back to ONT to retrieve our car. We were told that a driver could refuse to take us that far and we would be given another driver, but the first driver was willing to make the 2 hr drive in traffic.
Overall, while not an ideal situation, it was no problem and the terminal had far less congestion than usual. There were stories in the news about people being on the shuttle for an hour and nightmare times getting out of the LAX-It lot, but we did not have those experiences.