Everything was delivered quickly, as expected and in good working order as far as I can tell, this kit had everything I needed to get up and running.
The button micro switches and JS make an audible "click" just fyi.
Joysticks feel good, takes some getting used to if you're from the Southern Hemisphere reliving your Street Fighter 2 days.
Get some proper wire strippers as you do need them for the IPAC board ends.
No instructions but it is fairly intuitive (look at the Ultimarc website).
For the GND (COM on the Buttons) wire, you need to daisy chain all your buttons/JS COM connectors together using the provided Black cable . When they're all connected, snip and strip the last end and plug it into either GND terminal on the IPAC2. Again, just fyi, I didn't really know what I was doing but got it working fine.