No regrets in terms of $$ or lacking the 'real pain' experience.
When God first created childbirth, it was painless.
I had friends who had deep faith and they had painless deliveries without any medication. I think it's all in the mind.
If you intend to take, make sure you choose a senior and experienced doctor to do your epi. Mine was quick and I couldn't feel a thing. Price wise I think I paid $100+ more than the normal doctors in terms of doctor's fees.