A friend's x-girlfriend got pregnant because she poked a hole in the condom without him knowing. If you are male and don't want to have kids, make sure you use your own condoms. Woman has many more options to avoid pregnancy, man has one shot with the condom (AFAIK vasectomy can be permanent).
I think this type of birth control has the potential of lowering paternity fraud since man will know the child is not his. It also reduces unwanted pregnancy when woman poke hole in condom or other condom issues.
This birth control for man is great news and I hope to see more male birth control options in the future.
Secondly, I see orgasm as a highly pressurised, highly tuned, intense thing. It feels like I'm straining every part of my balls to the limit when I'm doing this - if I had medical procedures down there, anything that could psychologically make me feel they were frail, that would utterly ruin it.
And I don't think it does anything to make you feel like your balls are "frail". So far the only side-effects I've read about are a possibility of swelling for 1 week after the operation. Then, you're back to your old non-frail-balls self!
I think this is more a secondary defense. For me personally it wouldn't replace condoms (1, I have never had issues with them, and 2, STD's can still be transmitted) unless in a committed relationship, but also to make sure that if something goes wrong with the female birth control, that there is a second stop-gap measure.
I as a 23 year old love the idea. If it is affordable and easy to get done I wouldn't have an issue going to get it done. And from the sound of it, it will not cause pressure to build up much like getting them cut would...
There are liars the world over. I don't think that is necessarily a trait that is just for men. I've know quite a few guys in high school that had unprotected sex because their girlfriend was on the pill end up with a baby because that is the way she thought she could keep him forever.