I shave mine and have for about 4 years. When it grows back it is now grey, like most of my hair lol.
Can get a bit itchy, but you then know it's time to shave again. Easy to do it in the shower. Feels great after. Normally use a bit of post shaving gel to make it feel real smooth. Great sensation when having sex with a shaven lady. Nothing like the skin to skin contact.
More hygenic for BJ's too.