Reducing ground loop noise/hum

I own the Behringer and it is okay. It does what its supposed to and it´s cheap. So I´d go for it.
 
At least I can´t hear any. Maybe when reamping clean guitars but who´d do that?! :lol:
Before the Behringer I had a hum destroyer from ART (can´t remember which). I could a hear a difference in sound with that. It killed some of the high frequencies so I finally sold it.
EDIT: Just saw the ART is on your list. I wouldn´t buy THAT.