I had my eyes lasered 10 years ago at Moorfields Eye Hospital. I went from a -6.5 in both eyes to perfect vision initially, in the last couple of years I've gone slightly shortsighted (now -0.25 both eyes) so have glasses for driving.
It was worth every penny to be able to play squash without glasses falling off (I became unable to tolerate contact lenses, unfortunately) and to be able to find the loo in the middle of the night! One thing I would say, though, is if you think of having it done you should get it done in a proper, decent place.