I've had better bars. I agree that I probably would not use the parchment paper if I were to make this again. All in all they were ok, nothing special.
I followed the recipe exactly, but I used dark brown sugar instead of light. They turned out okay and I will probably try making again, but I had the following issues. The parchment paper made it so the bars were uneven in the corners (I might just grease the bottom next time), there was not enough ginger taste and all the chocolate chips went to the bottom.
Made it without chocolate chips but still bars had good Christmas like taste!!