I've taken my daughter around pretty much all of the similar museums in the Midwest, and by far this is the best around!
It is not a "science/tech or children's" museum so not as much hands-on stuff, so don't make that comparison. It is in the ASTC network so take advantage of that if you have a membership elsewhere. My family plus father-in-law only paid $10 for his senior admission.
Most museums of "Natural History" seem really old and stuffy. The structures and displays seem almost as old as the dinosaurs. Not so in Cleveland. All the exhibits seem fairly new and clean. Everything in working condition.
Easily fooled from the map and descriptions, but this place is HUGE!
Big plus is the wildlife center. Today did not reach 60F, so not many animals out, but I can imagine all of them being on display during Spring. Would love to come back here just for that reason.