Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: My son installed the faucet and it is working O.K. However, it is very difficult to install and it did not come with a tool like other faucet product. Also, the faucet color is coming off and collects a lots of white calcium in and around the edges.

it is very difficult to install and it did not come with a tool like other faucet product