Do it!!
I had LASIK surgery done about 2 years ago - best thing ever!
i'd say that my vision isn't just 100%, but it is pretty close - i get halos around lights at night, and if I'm tired my vision isn't as good, but then I was on the borderline of getting a good result (they only told me that afterwards - my vision was around -4 with significant astigmatism, so if you are worse than that be warned you will probably still need glasses). It's not that nice getting it done, but then I'm a bit claustaphobic and quite squeamish about my eyes, so others would probably not find it as unpleasant as I did. Oh, and i was left with a red ring around one of my eyes for about a month - looked like I'd been in a fight! And it took about a month for my vision to settle down properly - reading was a bit off initially, and my eyes were quite sensitive to light. Didn't really have any problems with dryness though, despite them warning me that I might well as I had dry eyes before having it done.
Don't let me put you off though, as Saying all that I'd do it again tomorrow if I had to to keep my eyesight as it is!
Oh, And it most likely will cost a lot more than the adds suggest, unless you have minimal eyesight problems to start with. I paid £2,500, but I was initially quoted £3,300, so don't accept their first price - I just said it was too much money and they kept ringing back with a better price. It seems a lot, but it really is money well spent!