I currently am 12 weeks and 23 treatments into my armpit hair removal.
While it falls short on its claim of "painless" and "permanent hair removal in 8 weeks", I really enjoy this product and would still recommend it.
Pros:
Reduces growth speed of hair
Causes hair to grow at different speeds which allows hair to look sparse for longer
Reduces thickness of hair
Reduces shaving frequency
Quick treatments
Easy care
Mild pain
Cons:
Bright flashes of light with treatments, may cause visual disturbances
Has not met claim of "permanent hair removal"
Although often a minimal burning sensation is experienced, it can sometimes increase to a moderate burning
It may be that someone with a different skin color and hair type may benefit from this product faster/better than I have. I use this twice weekly on a setting of 6 or 7. I may try increasing treatments to three time weekly to see if improvements occur.