I use about 4 of them on my board(s) due to the power supply on a few are at an odd angle. When I am not playing everything is dead quiet. I have had these adapters on my pedal board(s) for about 6 or 7 years now. Nothing has failed except for one Onespot. I contacted Visual sound & they replaced it under Warrantee. When I say fail it didn't actually die but it did start hissing. I must have kinked a wire in it or something. Other then that minor issue everything has been rock solid. Now if you use a board with 10 or 12 pedals this may not be to power source for you, but I use a CE2, a DD3, an overdrive, wah & tuner. Done!
I have all of my wahs hooked up with these adapters and a couple of other pedals because of the angle of the power connection. I never use batteries so taking the bottom off is really not an issue.
