Given the task definition and input, reply with output. In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.

This slide converter has a very small screen and hard to see details on the slide that need touching up. The operating manual is very brief and takes a lot of trial and error to get a decent picture. The operation of the scanner is OK just how to adjust the quality of the picture is substandard. I am sorry that I didn't return it when I could. Knowing what I know now I would never have purchased the unit.
This slide converter has a very small screen and hard ...