[VeryVito]

I always opt for open-source when available, but after having used JetBrains' PHPStorm for PHP/CSS/JS/etc, I can't even pretend Eclipse is still a viable solution.

Although the community version of IntelliJ at PHPStorm's core is open-sourced, PHPStorm itself is not. Regardless, the productivity gain it provides is WELL worth the cost and inconvenience.