Elementor is a great new drag and drop page builder from the guys over at Pojo.me. I was sent over the beta version of Elementor several weeks ago and was very impressed. While I’m not a huge user of visual editors, it was very responsive in adding new elements. One of the prime reasons I dislike solutions like Visual Composer is the amount of time I waste waiting for the plugin to respond to my changes which Elementor has done a great job of resolving.
Also, Elementor works on the frontend to produce responsive results in the exact manner you see it during editing. Overall it’s a great plugin and it’s free!