The Matterhorn is a classic! It's tame by today's standards, and is a bit bumpy, but very fun. Amy&Dan described it very well. It's an absolute don't miss in my book. It's open during EE, and as A&D said, its good to ride early since it doesn't have FP. But I also like riding it at night, since the lights are so pretty as your bobsled takes you in and out of the mountain. The lines are definitely longer at night, but sometimes its a bit deceptive. Before parades, they close one side of the line on the parade route side, but both sides of the ride are open so the lines move twice as fast. The Matterhorn is also an icon for DL IMO. The sight of that white mountain from the freeway is just so welcoming.