Went under the zapper as a birthday present to myself 15 months ago and haven't looked back since. Be sure to go to a reputable optometrist to get advice about it, and research the place conducting the surgery heavily. Even allowing for that, the girl who went in straight after me had problems for quite a while afterwards; she's ok now though.
But personally, my op went off without a hitch and my eyesight has been perfect. Well worth the $4,000 it cost me, as I'll save at least that in new glasses, contacts, solutions etc etc over the coming years (I was a contacts + regular shades guy before, but couldn't stand prolonged contact wear).