We used the Diamond Line last trip.......well, I put everything through on it, but when we got there, there was only 2 other people checking in so the Diamond Line was closed. They did however know our requests in advance though, which was handy....like requesting one of the newer units rather than the ones everyone complains about (see tripadvisor)....It seems theres no real way to guarantee you'll get in a new unit like Cascades, its just luck...and for that reason, despite absolutely loving it there, we wont be going back.