I hope you'll enjoy reading it, too:
http://www.theferrett.com/ferrettworks/2017/09/the-best-musical-you-never-heard-how-groundhog-day-made-me-a-better-person/
Intro + a few excerpts I like the most:
This, not from the musical, also brings me an impressive insight / a great way to put some things I've already realized to some extent:
After reading, you might want to hear at least the song the author mentions there the most - here is a version that caught my attention: