I am an RN at a medspa in LA. I started doing laser genesis two years ago for redness, large pores and fine lines. It's great because there is no downtime and I feel like my skin looks better immediately after.
You definitely need to do a series in the beginning (6 treatments spread out 1 to 2 weeks apart) for maximum benefit. Also be open and honest with your practitioner about any medications or medical problems you have because that can affect the results from the laser. It's not a miracle worker, if you have deep lines or very bad acne scars you may need something more aggressive like Fraxel or Pearl.
I get it done now about every two months and my skin is definitely better than it was when I started two years ago. I used to never leave the house with out face powder or cover up to mask my redness from Rosacea and now I often go out with nothing but sunscreen on. It doesn't do much for pigmentation, for that you need IPL or something like that. It also helps if you have your skin properly prepped before the laser. My place does a 15 minute mini-facial w/ extractions prior to laser. Love it!