I have had 2 treatments already and have noticed it definitely thin out and it doesn't grow as quick either. Before my first treatment I would have stubble, and quite a bit, within 4 hours or so after shaving. Know I have just a little stubble about 24 hours later.
You also need to know that the laser only works on certain hair colors, mine is a mix of red and black. The laser doesn't recognize red, white, and i think blonde but not sure. Because of that I will have to have electrolysis to remove the rest of my beard.
Lastly you should also go and speak to someone because some will actually put you on a monthly payment plan so you don't have to wait. I go to Ideal Image which is a national company I believe and the payment plan was the only reason I was able to do it.
I hope that helped