I'm 29; Had it done a year and a half ago @ Will Vision up in Vancouver. He's got the best (latest) equipment and the best credentials in the metro area. Went to him off references from two of my close friends who've had it done w/him and loved it.
I wouldn't look back. It's the best thing I've done for myself in a long time.
Immediately after the thing is done (which is all of 5 minutes in the chair); you can see better, but everything is bright, and full of glare. So I just got home and crashed for like fives hours (the pills they give you help).
Once you wake up your eyes are dry as hell, and you throw some of the supplies eye drops in and you can see perfectly. Bright lights have halo's around them, and at night it's worse, however this went away for me in 2 weeks, just as they said.
I now have perfect vision (in light and night), well its even better than 20-20; more like 15 or 17-20.
Edit:
The most important thing to do is follow the post-op instructions, can't stress that enough. Most people who have terrible results do not follow the post-op instructions; the eye drops are SO important to the healing process and rubbing your eyes is a major no-no.
another edit:
Will Vision has some pretty awesome eye-mapping technology to be able to see exactly where your eye needs to be improved on. You should definitely check them out, the eye-analyzer is freaking top notch.