Since last update PHPStorm does something very anoying for me.
Whenever i start to type <? it autocompletes it to <?PHP
So, when i'm editing templates and i want to type <?= ... ?> i have to remove "php" before typing 3rd character of short echo.
Maybe when most of your work is writing pure PHP or when you don't use short echo it's easier, but i'm not using any template engine in my project, so using short echo is easy and clear way to output something