1) I was iffy too for a while, but then I did it on a random whim and now wont part with it. I think its definitely worth trying, and if you don't like it, it's just hair. It'll grow back.
2) I typically either put the front part in a ponytail (the backs too short for that) or I just let it hang where ever it wants to.
3) Well, my boyfriend loves it. I have never had any negative comments from men about it. Also, if you want a mohawk, screw what other people think ;)