I bought three groupons for simplicity because after the first groupon I bought for my underarms, I had AMAZING results. I am hispanic and my hair is dark and coarse. So usually if you're new to getting laser hair removal, you get the best results if you have very light skin, dark and coarse hair. However, even being tan I've had fantastic results!
The great thing about Simplicity is their lasers treat all skin types and do not touch the skin, so you can have piece of mind that you won't pick up anything from someone else, or have improper cleaning. These lasers also blow a cool air while pulsing, which makes your session MUCH more comfortable. I've had several sessions for my brazilian, and although it still hurts like hell, the cold air makes it bearable without any type of numbing cream. They also have a killer deal every month. For example, I purchased a "full leg" membership for only $39/ month ( this is usually close to $100/month).
All in all, everybody experiences different results and it really all comes down for if you're a good candidate for laser hair removal. Research the lasers that are good for your skin type and go from there.