This little gadget does its job, it connects two pedals and provides a crystal clear signal path.
I bought this and a slightly different offset adaptor (which allows for height differences) to use between boss and ibanez pedals, the only issue is with this device, is it requires a large space inbetween pedals, where as the offset connector does not. The resulting effect is a large gap, small gap etc etc between a line of pedals which does not look right, the way around this it would seem it to use multiple offset adapters, however when doing this the boss pedals form a zig sag pattern along the board, so there is no real solution using these straight through type connectors.
It works for a couple of pedals of the same manufacturer, but it doesn't simplify things if you have a big pedal board, you may even save space in the gap between pedals by using simple patch cables. Quality is good though, delivers what it says it will.