I used theese plugins and I solved problems. In my business they want know all, they want learn all in seconds, I was frustrated about the speed that surfers of my website, touristic website, want to plan their holidays. It was very difficult to increase their satisfaction. Now this pligin helped me TOTALLY. The light of the css coding the best speed of the website. All things the programmer build have a beautifull style. I probably will use other free plugins, but this is very very usefull. Thanks.
Thank you for your great review :)