Absolutely HysTeRiCaL !!! Never laughed so hard all the way thru a show before. Not sure how often the cast changes because the photos I see of the cast have a few different people in it than what we saw on 1/3/16 at Balley's in Vegas. I can only hope you are lucky enough to have the cast we saw - especially the lead who plays Grey - you would swear he was Ben Affleck's brother...well, kinda - you'll know what I mean once you see it (hee hee !). It is so funny but not for those easily offended by silly sex topics- you guys stay away and let us enjoy the humor....and surprisingly good singing voices by all ! Just go and see it !!