Just had it done.. wasn't too bad. I was put "under" sort of, the injection of whatever makes you just not give a fuck. That was pretty interesting. "woke up" halfway through to lots of tugging on my jaw, and was only mildly annoyed about being woken up from my good dream and wanted to get back to sleep
Don't really remember much else.
Don't schedule anything for at minimum that day, and I would highly suggest the day after. I was out of it the day of.
The worst part for me was the numbness. I had very impacted teeth, and when removed I swelled up bad. The removal and swelling pinched my nerves, and man I couldn't feel a thing for 24+ hours. I was starting to freak out a little, but after the second night I woke up in the morning and feeling was starting to come back.
So for me.. the pain wasn't really bad at all. The pain meds take care of it fine, and are overkill - at least for me - after a few days. Worst part was the bleeding/numbness/swelling the day of. Just plan on staying in bed when you get home and you should be alright.
-Phil