I recently made the switch from a relatively new page builder and a tone of plugins to Nexter. There was a small learning curve, and lots of exploring because the tool can do so much. But so far, the new site I am making is coming out looking great, and I haven't added but a couple of other plugins. The site, both front end and back end, is snappy. We have gotten compliments on that and I have not even set up any page cache or CDN, that says a lot about how much effort they have put into keeping everything lean. So, at this point I am not disappointed, I will be doing all future sites and makeovers using Nexter.