I just finished spending the last 3 days preping, herculining, and putting back together my YJ. It was a HUGE hassle, likely just because I was doing it on my own. I'm still happy with the result though.
A couple of unhappy points though, I just BARELY had enough to finish two coats, and can still see a few small spots through the herculiner that I wish I'd been able to give a better coating. Also, good god it's shinny!
From what I hear, the shinnyness goes away after a while, so I'm not too upset about it.
All in all, happy with the product. I also managed to pick it up SUPER cheap from Advanced Auto by ordering it online and just selecting "pick up in store"... if you use the code BIG35 you get $35 knocked off of an $85+ purchase.