At any method use, I can right click and go to the declaration, or the test case or simply refactor. All in all I found this IDE to be cleaner, and more user friendly than Eclipse or Aptana and it allows me to work on the things I need to work on rather than monkey around with settings and windows.
3) Eclipse I think is for the multitasker. Little Java here, little php there, sprinkle some python and C++ .. with its wide arsenal of IDE choices and plugins, it makes it the ideal work platform. Getting everything to work together sometimes though can be a challenge.