I had such a strange reaction to laser. Just after one time, a few days later and my hairs seemed to be growing even more rapidly! They were very dark and thick and I thought, "Oh no! Its sped up the process!!!" I didn't experience any pain shaving. Just about 2 weeks after, I was exfoliating my face with a wet rag (which is what they told me to use) and the hairs were just coming out left and right! It was freaking ridiculous! They said to expect 15 to 20% reduction the first time, but I definitely got about 40% reduction.
Also, the hairs that are still growing are mostly under the nose and chin. The sides of my face are pretty barren with the oddest shapes of growth pattern. On one side it is patchy and spotty like a dalmation. On the other side, well the strangest thing is happening with a perfect line of hair zigzagging like a lightning bolt down from the middle of my ear to below my chin. Can't wait to get that out!