What I like best about Wp Bakery it that It's easy enought even an absolute beginner can use with no problems at all, The drag & drop feature makes things very simple in terms of editing pages or posts without having too much trouble; also adding images are really smooth if not as fast but still pretty good (if your computer has decent speed).
There aren't many features yet left out so far from what i've seen anyway since this software seems fairly complete already compared other similar ones available online now days! One thing might be missing would probably only come up when using some addons though such as Visual Composer Pro addon etc.. But overall everything works perfect together here!! Creating new websites/posts was one big problem we had before switching over into wpbakry because our old CMS couldn’s manage creating dynamic sites easily unless they were manually edited by us every time after each update done via webhosting control.