In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.

[EX Q]: Changing review rating. All of sudden just stopped working. Purchased in December 2017. It's only April 5, 2018 now. For the price I paid, it should have lasted. I don't even know how to contact seller. The window for return came and went.
[EX A]: Changing review rating. All of sudden just stopped working ...

[EX Q]: This laser engraver is hard to use, the software that it comes with is very slow and hard to use. It is quite confusing, and the website for the guide keeps going to other languages. The result, as in my picture, looks horrible and uneven. It is nothing more than a toy that shows you how laser engraving works. No going to do much in real life. Plus the whole thing looks to be a prototype and not an actual product. I will be returning it.
[EX A]: Hard to use, little support or guide, and poor result.

[EX Q]: Did not work wast of time sending anything back
[EX A]:
They bill you after you return it. Amazon is not what it use to be. It's just another rip off