But maybe Michelangelo's biggest regret was having never made a good sandwich. You might have one up on him.
You have to remember - this was his job. This wasn't a little hobby he worked on on-and-off in the background. He wasn't putting 8-10 hours in down at the accountancy before popping into the chapel for a little while. From a very young age he was supported both financially & emotionally by his community to sculpt, paint, and whatever else.
I like a good epic as much as the next person, but this is pushing 3 hours itself. Assuming Part 2 is similar, I definitely don't have the attention span to hold me through a 5 1/2 hour, 2-part musical. Yikes.
I'm trying to think of any musical that would be tolerable at 2x the original runtime.