I had a ground loop problems because of my pedals and lack of grounding, my amp buzzait thoroughly .. I bought a One Spot (Visual Sound), which did not help.

So if like me you buzz, a house that is not the standards of a power perspective and a lack of grounding for your amp and your pedals, the PP2 + is for you !! Do not listen to the seller who told you that that price you got so take a little 'alim and do you like me' with a new pedal, it is clear that it is not given (about 200 €), but it's worth it !!

9/10 for the very high price.