I am 10 years post-LASIK, I am pleased with my results. I am also an optician and I see mixed results, most people are happier after it is done but some people have continuing problems.
The procedure has improved greatly since I had mine done but there are some drawbacks. There is a high correlation between LASIK patients (even the latest and greatest procedures) and greatly-reduced low-contrast vision---a type of vision problem not really addressed in a standard eye exam. I do not have 20/20 vision now (I never did, quite) but my low-contrast vision is poor. This means I see ok in an eye exam under very good dark/light conditions, but that my vision is considerably reduced when a room is dark or for night driving. Also, I needed reading glasses a few years before most other people my age--but use them only at work with tiny eyeglass screws, etc.
Knowing what I know now, I would still have had the procedure done.
If my son (high RX) wished to have it done, I would encourage him to do so--but I would help him carefully research the best place to have it done. This is very important.
Who knows where we'll be in 6-7 years? I've heard of some very encouraging things that are on the horizon--how well they will acutally work, though, only time will tell. I'm sure they will continue to improve this procedure as they have done with all eye surgeries--technology is not going to stand still.
PS - The corneal flap is often very hard to detect even just days after the surgery. Think of plastic wrap re-sticking to itself--I've been told it's a bit like that--it is rare for it to "come loose" after being stuck back down.