Studio 6 is bloated. But look on the bright siode, it could be worse... it could be Apple iTunes (bloatware with bonus crapware, idiotic, unintuitive and downright annoying).
If you are using GCC and are using an antiquated PC, try 4.81. Works OK for me except annoyances like switching between two projects and the Studio remembers the last hex file, so it is easy to program in the wrong hex file. Other than that it works reasonably well.
If you are using a great compiler like CodeVision AVR, it will only integrate properly with the bloated AVR Studio 6.1 or higher.