When I started reloading I used the primer set up on my rockchucker. I soon changed to a lee handprimer, it broke. Bought another lee, it broke, so I bought a Sinclair hand priming tool, it was awesome. Ive still got the Sinclair, but currently use the frankford arsenal hand primer. I definitely like hand priming more that press priming. Is there any real world benefit to it? I don’t think so. The benefit to me is being mobile with it, I can prime in the living room and hang out with my wife, I can take it to work and prime brass on slow days.