I am really glad that this adapter exists. I first bought one Cioks Schizophrenic to power the few pedals I had. But I knew I might have to power more pedals. Therefore I went for the option of being able to buy a second Cioks PSU compatible with this adapter and connect them together, which I did.
One might, maybe, regret not to have a flexible and longer adapter for putting more space between the PSUs. They stand ca. 3cm apart. But more space would mean a longer patch cable between two pedals.
In sum, it is a very convenient tool that allows to modulate how many PSUs (depending on the pedals you want to use) to take with you.