Just as I was going to install PhpStorm 6 on my new machine at work, cool. Most people in my team are not convinced PhpStorm brings anything valuable compared to NetBeans, Eclipse, Sublime2 or even vim. Maybe I will try once again with version 7 :)
I also had some issues with NetBeans being inresponsive, or some functionalities breaking for no clear reason (like "go to definition" wouldn't work anymore) etc.
My working copy was on a mounted drive - which sucks, but it didn't depend on me - and whenever NB had a problem saving some file, it would make it look as if the file was saved anyway, and I ended up losing changes.
On the top of that, its SVN integration (I've switched to Git since, but I never looked back at NetBeans, so I can't compare) was ridiculously slow.
It just feels buggy.