I'm looking to improve on my minor Acne Scars and Fine Lines. I believe most of these lasers work on the same principle in the sense that the only work on small areas of the skin at a time. However there are difference in the cost of these procedures and satisfaction ratings on this website. As professionals which laser would you suggest provides the best and safest result? It seems the Genesis Laser has the highest satisfaction while the Pixel is cheapest. Any information would be very helpful.