Don't worry much about the pain level, as it is pretty bearable. The only areas that would possibly cause more pain are the upper lip, and even possibly right under the chin.
I was in your situation back in January, so nervous for my first session. I was scared that it would hurt so much, but I was pleasantly surprised. I recently had my second laser session; it hurts less each and every time. Also, it looks like you are getting a great price.