Ya know, there really is no such thing as "pain free" child birth. REDUCED pain, maybe. But even if you are totally knocked out, there is pain involved afterwards.
That being said, I have had 3 kids...#1 was brutal...long labor, hours upon hours of pushing. I had Stadol during the later parts of labor, but before the pushing part. All it did was make me feel loopy, but I WAS able to steal 60-180 seconds of sleep at a time.
#2...piece of cake. Hd stadol with him, as well, but had I known how fast it would go, I would have skipped it. Water broke, I was at 6 cm; got the stadol...he was born 30 minutes later.
#3...both hard and easy, in different ways. Was induced...lasted 2 days...coming up on day 3, I opted for an epi, because I was SO tired, and just didn't feel like playing hero. Got the epi, pain was diminished (notice, not GONE). EASY delivery at that point (started pushing, and he was born 4 minutes later...woot!). Best part of the epidural, IMO, was AFTER, when they come in and mash on your abdomen to make sure your uterus is retracting ,etc...didn't feel a thing! Hurt like hell with the first 2!
I know childbirth is a natural thing, not a medical condition, but I appreciated having the Drs, etc there, who knew more about what could go wrong that I do!