I've had it done, both eyes at the same time, about 8 years ago. it's not painful at the time, but once the anaesthetic drops have worn off it stings, and you need various drops while your eyes heal.
I paid about £1200 with Optimax, but prices may have come down since then. you can google to find out options with procedures.
A girl at work had it done to both eyes and could see a black line around everything for months afterwards. She eventually left so I couldn't ask her if it ever cleared up.
I think it's fantastic, but 8 years on I think my distance vision isn't spot on any more.. but it's really really good, probably still 20/20, and certainly not enough to consider glasses.
I had dry eyes for a while and mild "halo effect" around lights, but that went quite quickly.
I wish I'd had it done sooner, as they say in the ads!
Don't confuse laser surgery with cataract removal. I've had both kinds of treatment. Neither were painful, if perhaps a little stressful. The lazer surgery involved first some drops in the eye. After that it was rather like sitting in a dentist's chair and someone with a gadget watching closely. Two or three minutes with a few weird light effects and a whirring noise and it was all done - no problems. Sorry I can't help re cost as it was several years ago. Perhaps other readers can help by adding their experiences.
Laser might correct your vision now but it won't stop your eyes changing over time. If your parents wear specs, ask when they started / how their eyes have changed over time, as the same changes are likely to come your way. What I mean is, some people with normal vision need reading glasses in their 30s, others not till their 50s - and if you have laser surgey for distance vision you may still need reading glasses at some point.