I've tried to switch from NetBeans to IDEA for quite some time (I use IDEA for Clojure), and I just can't. IDEA is probably more powerful, but I find NetBeans so much less annoying (you don't have to restart the IDE three times whenever there's a plugin update that might clash with another, or restart the IDE when you need to change the project's Java source version, or open a new window for each project, or click 10 GUI elements to install a plugin -- none of which is consistent with any other desktop app, etc.), and the UI is so much cleaner, less cluttered, and more intuitive (a right-click usually gives you the options you'd expect). Also, NetBeans' Gradle integration is really great. They're both terrific IDEs. IntelliJ is more powerful, but NetBeans has a much better UX.
I used to program in PHP, with NetBeans at first, and switching to PhpStorm was an incredible relief.
Perhaps things have improved since then, but I remember NetBeans to be awfully buggy, eg. it could make it look as if files were saved whereas, uhm, they weren't, because of which once it got close to being banned in the company that I worked at.