my previous boss had it done and there was some problem with the surgery, i can't remember exactly what. but now her right eye is permanently damaged, nothing can be done to fix it, and she can't wear contacts.
on the other hand my best friend had it done about 5 years ago and she is very happy with her 20/20 vision.
a friend of my parents who had it done has problems with night vision but everything else is fine so far.