I'll amplify on what Tim said.
(I wrote this paragraph wrong initially; it's now fixed). Nerve-sparing surgery only means you can still have an erection. That's it. You certainly don't lose any pleasure/pain sensation if you have non-nerve-sparing surgery. I guarantee that if I sat too close to the campfire and set my penis on fire I wouldn't just sniff the air and ask, "Is something burning?" And if you don't have nerve-sparing surgery you can't use your penis for a pin cushion.
One more time--it feels exactly the same as before. I just need the mighty AMS 700 to have an erection.
When I was at USC on February 21st for my six-month checkup, the nurse wanted me to self-catheterize so they could fill my bladder with some chemical and take an xray that told them if it was holding fluid properly--i.e. no backflow. I looked at that damn tube for five minutes before I put the KY jelly on and started to insert it. You know what? After the RC it went in much easier--no problem at all. I think losing that internal sphincter--or maybe the prostate--made the whole process much easier and close to painless.
In March, when I convinced Dr. Ginsberg to install the artificial sphincter, he said "I have to scope your bladder just to make sure everything is okay before the surgery." I almost told him to cancel the order--that I'd rather wet the bed than have another cystoscopy. But I gritted my teeth, pulled down my pants and..... and...... this time there was no pain at all--it was easy as could be. Now, granted, Dr. Ginsberg is a real pro at this, but it couldn't have been easier compared to the initial cystoscopy at my diagnosis.
So things definitely change for the better in that regard after the RC. I guess that's a plus.