I have been reloading for 15 years so i do have experience, but i have a redding single stage and redding t7. I am considering a dillon 750 or maybe a 550. The 2 calibers i am interested in reloading for with a progressive is 9mm, 223, and maybe 300blk, everything else is on my other presses. I use nothing but range pickup brass, i never have new brass. I don't track firings my 9mm, but try to on my 223 but gets mixed up at the range. My concern is that i may not find problems in brass if i use progressive to size ect. I might not notice a split or loose primer pocket. And if i prep my brass ahead of time and prime is it worth going progressive. I am not sure the process you guys use for brass prep before you load up a progressive press but i am open to suggestions. Also i wet tumble my brass, and that means i cant clean my brass before i deprime on a progressive because of water in primer pocket unless i bake my brass.
One of the cool things is my wife is onboard with me spending the money on the press, over 1200 bucks, because she has helped me size a lot of brass and knows how long it can take. She did about 1500 9mm before at one time. She also runs the wet tumbler so i am lucky she is involved with my hobby.