I tried them all, this is the best

I have tried many cache plugins, and for a time I ran a few of them concurrent with SG Optimizer. I now just run SG Optimizer with Cloudflare. I have all the tools I need and I got rid of other cache or speed plugins with their issues. I also like that the plugin is continually being updated with new features (not just bug fixes), and real updates. Easy install, easy use, safe and fast, everything I need.