I had it done last year. My legs were pretty bad and I got about 85% of them removed. I'm going back for the other 15%. Last year's worked pretty well and don't seem to have come back - or maybe only slightly. I have no illusions that I'll never have to have it done again, but I am hopeful that it will only need to be done every few years as a touch up. I feel so much better about my legs - not perfect, but not embarrassed any more.
It does sting, but it's temporary. It's like getting mini-shots so it hurts a little, but is not too bad. My bruises were mostly gone within a week, but I bruise pretty easily. I did wear the compression stockings for an extra few days or a week or so, but again, I did that because I bruise so easily and am so fair and because my veins were so bad. Other than that, "recovery" was nothing.
I would definitely recommend it.