Sorry that the plugin didn’t work out well for you. Please do not leave a bad review simply because you don’t know how to use the plugin or wasted your 2 hours. We developers have spend thousands of hours to develop the product and still we provide it for free.
If something doesn’t work out well for you, simply go through the documentation and resources available. Ask for support and then post a bad review if you don’t get help, but let us try and help you first.
If you still need help, here are few resources on how to use the plugin properly. If you still can’t make the plugin work use support forum for help.