The best, most versatile I ever had

I’ve seen those other reviews in which people complain that the plugin rips their pages apart – well, if you don’t test which settings work for your page, it’s your own stupid mistake. If you just manage to test properly, you will get the best results among free caching plugins!
What’s more, it is replacing additional image optimization, lazy loading, JS & CSS optimization and allows for integrated cache warming / preloading through a auto-cronjob. I really don’t know what people are complaining about. This is probably one of the most underappreciated plugins for wordpress.