I'm curious about the effects of Pico Toning.

I'm looking into Pico Toning because of blemishes and light pigmentation. How many sessions do I usually need to see noticeable results? I'm hesitant because I've heard that just one session isn't very effective. I'm curious if it makes my skin tone look brighter overall, and I'd also like to know if scabs or redness last a long time after the procedure. I'd love to hear reviews from those who have had it done.