Guess I no longer need this! 
The ION was still quite crowded at 8pm on Sunday. 10+ people got off at R+T Park station, the station which I expected to have among the lowest ridership.
A significant number of people got on at Frederick and got off at Waterloo Town Square. Mill and Block Line seemed to be that least crowded stations.
As others have said, it feels more like the Disneyland monorail than crosstown rapid transit.
The ION was still quite crowded at 8pm on Sunday. 10+ people got off at R+T Park station, the station which I expected to have among the lowest ridership.
A significant number of people got on at Frederick and got off at Waterloo Town Square. Mill and Block Line seemed to be that least crowded stations.
As others have said, it feels more like the Disneyland monorail than crosstown rapid transit.