The beginning was decent, the middle was average, the ending was great. Seems like it's a "feel-good" musical with a talented cast...just a bad book, which is why those looking for a show will not like it.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle