This stuff is the nads. I have one base mount on my bench. It's the square black plate in the top photo. All of my presses are adapted with the QD base plates, along with some of my case pep tools, a Wilson trimmer, a RCBS bench priming tool, Dillon Super Swage, and a vise. I figured with space being at a premium, and I can only use one tool/press at a time. The storage brackets keep everything stored off the bench until I need it. The machine work on the pieces and the powder coat finish, makes you wonder how he can make much of a profit on what he sells.
The stuff is addictive. Once you figure out just how handy it is, you will start looking for the next item to get.
My only regret is not routing the bench to inset the base plate for a smooth bench top. I was going to take the top off and do it, but I remembered how many screws I used putting everything together. Everything has been puttied over and painted, so that's not an option. I don't want to do it in place because it would take days to clean the place up. Just a word of advice. If you can route the bench for the base, by all means do it.