Well....it was over 20 some years ago, but here is my story:
After 2 daughters I figured I was destined to live in the "international house of women" and decided it was time for the snip.
Showed up and the wife was not allowed in the room as the proceedure with me (they said a wife freaked out once and aacked the staff). While I am waiting the male nurse sashays in and with a lipse says "this won't take long, I'm going to shave the area to prep. You will only feel some slight tugs during the procedure, and then you will walk like a Texan for a few days. Oh, and we DO leave some of the penus intact!" "Just a joke, don't worry". So now I'm freaked.....not only do I not want a...um.."Gay" guy messing with my stuff, but I'm thinking maybe should not do this. But the doc comes in and it goes pretty quick....except the "slight tugs" felt more like a kick in the groin. We leave and stop at Perkins for dinner on the way home, and the waiterss ask's "will that be a dinner roll or Texas toast with your meal?" So my wife & I look at each other and break out laughing.
Within a few days all was fine and don't regret it. Pretty easy.
Now, the cary part. Afer 3-4 years I star getting pain and swelling. After about a week it is BAD and my testicles are swelling up to the size of baseballs! Turned out my body had some how sensed that they were "foriegn" as they were no longer needed for their intended purpose and was attacking them. A few weeks of steroids & some other meds they were back to normal & never have had an issue since. Doc said it was very rare reaction.
So my advice? IF your sure you want no more kids, do it.