well I guess it depends on how sensitive your boards are.
CPS2 boards are sadly very sensitive. I had it initally set up
supergun->jamma extender->switcher->jamma extender->CPS2 mobo.
the 5V line went from 4.9 at the supergun to 4.3 by the time it got to the board and it wasn’t enough.
I took out the jamma extender between the supergun and the switcher and it started working.
meanwhile my ZN1 and ZN2 boards worked perfectly with the setup before. As did my brothers CPS1 board.
I was contemplating daisy chaining 2 of these together. But I don’t have a need for it really. Though if you have 36 board that need to be powered then I guess you’d need to get 7 of them.
Also the jammaboard website sells them for about 100 a piece, but a few days after I bought mine I checked ebay and found one on sale for 11 dollars. Though the auction wasn’t over, that might be a way to save some money on these boards.