I have edit my review here to thanks Jeff the Great Job, Great Plugin and Fast Response Developer.
Yes! Increase front-end speed (reduce unnecessary CSS & JS & queries load in front-end);
Yes! Reduce certain plugin/s in certain page and post;
Yes! Increase back-end speed (reduce front-end JS load in back-end);
Yes! Reduce unnecessary CSS & JS to minify (use with W3 Total Cache);
Yes! Reduce server load jobs;
Best leverage speed with W3 Total Cache, Lazy Load, Google Libraries, EWWW Image Optimizer, Free CloudFlare CDN and PHP 5.4.
Thanks you Jeff