I still use Eclipse and have no complaints. If IntelliJ was a one time payment, I might give it a try, but I really dislike being bound to a thing with recurring costs.
I've used IntelliJ for a JavaScript project and in the form of AndroidStudio, but I don't remember anything so extraordinary that it would compel me to switch.
I am not in any sense affiliated with IntelliJ. I also resent recurring costs. But I am willing to throw ;-) an exception with them, because their development cycle is fairly strong and fast, so you get meaningful updates even during a single year.
Any 12 months subscription (be it one payment annual subscription or 12 consecutive payments) allows you to keep the current version forever. The subscription is only needed if you want to update to a newer version.
I've used IntelliJ for a JavaScript project and in the form of AndroidStudio, but I don't remember anything so extraordinary that it would compel me to switch.