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.