Lightsheer Duet For Brown Skin?

Hey all… recently I decided to get some laser treatment and went to a salon which uses the Lightsheer Duet laser. I have light to medium skin colour and black hair medium coarseness and wanted to know if this laser is good for achieving the best results as before I heard the Yag laser is the best for darker skin hair for achieving permanent hair removal and reduction?

I don’t want to waste money or time on something that won’t work best for me.

Thanks.