im thinking of buying one but im not sure exactly how good they are. im covered pedal wise for distortions and delays and now im moving on to modulation effects. i know ill use them but im not sure if i should just buy some separate units or get this big thing. are there any major flaws with this unit or is it all hunky dory? ive heard that when you unplug them the saved setting go back to 12 o clock??