I read it because my husband and I saw the musical before we left D.C. I think that was actually the last piece of theatre we saw before we moved. It was a decent performance. At the time, I was struck by the simplicity and strategic repetition of the lyrics. But I've been incredibly impressed how much the songs have stuck with me and how much I've listened to the cast album since.
I think going from the musical to the source material made me appreciate how much liberty Lisa Kron took with Bechdal's work. It was an adaptation and they exist definitively as two different works, yet there is also a way in which they harmonize.
Fun Home has powerful and skillful allusions to literary masterpieces that I am so glad Kron did not try to tackle. It worked incredibly well in print, in part because there was time for Bechdal to do the work to set it up. I think sometimes it felt a little forced, then she would keep pushing and a point or an illustration would just make it resonate and feel worth it.
There is a wit, an honesty, and a willingness to demonstrate beautiful (if not brutal) questions that drives this work. And I will never look at a package of Sunbeam bread again. Seriously, the way she litter that loaf of bread throughout the book is astounding.