I use those cables for their very small size and their high quality. A must have for every guitarist searching for space on his (always too small) pedalboard :D
I have been using these for several years and highly recommend them. I feel they are more reliable than the GL connectors. I had problems with GL plug connectors coming loose and intermittant shorts. This twist on design is much more reliable. The minature plug design is perfect for saving space on a crowded board.