After I tried their free version I decided to get a paid one, as I liked it and wanted to protect my 6 websites. It was fine at the beginning, I had nothing to complain about. But then something happened. The plugin started to work very slow and sometimes it took me about ten minutes to just load the page. It became so complicated so I understood I wouldn’t handle if this wouldn’t stop. The first thing I did was checking how it works from different places to rule out a possibility that this issue wasn’t local. Moreover, I wrote to my host representatives and asked them to check it just in case. And honestly speaking, I even blamed them for a bad service. How sad I was so wrong. I will have to apologize. However, they checked it several times and confirmed that I was wrong blaming them. Something else was causing the issue, and I guessed it was the plugin. So I decided to simply disable the plugin and to see what result it would bring. And guess what? Everything started to work faster. It took only several seconds to load the pages (instead of ten minutes, if you remember). There’s a lot of work to do for you, guys from sucuri.net. Until then I will not recommend anyone to use this plugin.