N-Lite/Lazor tretment for spots

Anyone tried this?
If so, does it work?

I have very mild spots but my skin is still blotchy/red from when I did have bad spots 4 years ago, and I have lots of blackhead pittings (those horrible pinhead marks). I can only wear concealer/foundation occasionally cos repeated use will make my skin break out and the blotches probably mean my skin hasn't fully healed from my old spots.

People always think I don't normally put an effort in whenever they see me fully made up, but it's because I will start geting bad spots again if I do, and I don't wanna go back to how I looked back then- I'm 21 btw and skin was worst aged 14/15- but I don't wanna 'appear' like a slob anymore (though I always wear eye makeup). So do you think it could work on technically 'mild' acne?