Does exactly what it is supposed to do.
This is one of those things that you could probably DIY but the price of the kit is so low that it’s not really worth it. By not DIY-ing you get a kit that is very well designed to exactly fullfill it’s goal: make sure the buttkicker has a solid connection to a Playseat frame. This kit does that very well. I get excellent transfer of vibration into the seat and it’s not rattle-y at all like my previous attempts were. The playseat with a solidly attached buttkicker is exceptionally good. Very convincing and adds way more than one would expect to the simulation experience.