I found the plugin easy to install but not so easy to configure. Let me clarify the install was (like most WP Plugins) one or two clicks to complete the install. The settings, however were several minutes of thoughtful answers to a little over a dozen questions. The questions were not difficult to answer, it's just that there are performance and behavior decisions to be thoughtfully answered.
Once installed and configured I've found it to run without any problems. I heartily recommend this plugin for all WP sites.