I have a very high prescription and as such, would love to get this done. Even if its not a 100% improvement, I'd love to at least drastically reduce my prescription. Even with the (expensive) "featherweight" lenses, I still feel like my lenses are far too thick. I've gotten used to them by now... but it's still too thick.
Other than the cost, my only other concern is of hearing stories about what happened when something went wrong... like people that have to use artificial tears at all times during the day because of severe eye dryness problems, or people who had the procedure done incorrectly, thus ending up with permanent "halos" in their vision.
Regardless, it is definitely one of my goals for the future. Once I make enough money to where I'd be comfortable with "investing" in something like this, I'm going to do it (if I'm eligible).