I forget why I got the RCBS, but I had it set up in like 3 minutes.The Hornady version looks easier to use, but maybe a bit longer to set up than the RCBS one. (Based only on the two videos posted here)
Any compelling reason to get the RCBS version?
I couldn't find the 9mm shell holder so I set it up in the Dillon. Took me 3minutes because I had to remove a die.
I had the Dillon set for 45ACP and it worked fine for 360DW (same as 357).