It's easy to hit everything once. But be warned, this is the first year for the new company, and the park is still putting itself back together. On our visit a few weeks ago, closed rides included Tig'ger, Lost Coaster, Giant Wheel, Shafer Queen, Log Flume and the new Super Loop... Operations are still as bad, if not worse than in past years. And the previously wonderful Hoosier Hurricane was still full of painful potholes. I hope the new company can pull it all together in the next couple years.
If you are going out of your way, or pulling time away from another park, I would say hold off to see if the park improves next year.
Indiana Beach used to be the sort of place we wanted to spend more TIME and MONEY, because it was so fun. The atmosphere, the rides, the lights at night, everything. Sort of a smaller Knoebels on the lake.