I know people who have had it done but I've heard mixed reviews.
My sister had it done years ago when it was brand new but now wears glasses. I have a friend who had it done and couldn't be happier. I know another person who had it done and says he sees white rings at night which makes it hard for him to drive.
I think it is a very personal choice. One that has to be thought out thoroughly and carefully.
Let us know what you decide and Good Luck!
My only advice is just dont be cheap and try to save a few bucks by going to the discount doctor.