Good results for free, but it’s a little hard to use

You have to spend some time with plugin configuration and checking if everything is working well. There are a lot of features and some of them can break your website. So why is a five star plugin? Because you can do it for free if you have the knowledge and even if you have the time to learn how to do it, but if you don’t have the time then you can paid them for support. So I think it’s a very good plugin.