In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.
Q: Review is solely based on installation. This is HORRIBLE. I have never owned a portable unit before and the instructions are horrible to follow. Panels are only designed for a certain length window and won't customize to your window height. Ridiculous!
A:
1