I started loading on a Dillon Square Deal progressive press 21 years ago. I was shooting lots of 9mm and wanted to be able to sit down and load 250 rounds at a time. Then I bought an old used RCBS JR3 single stage press from a friend along with a bunch of accessories. Once I figured out the routine and reduced it to as few steps as possible it's not really too slow and I like the results much better. The Dillon dies sized the tapered 9mm cases poorly and I sometimes had a bit of trouble with the primer system. These problems are gone on the single stage press and changing calibers is SO much easier. Since the single stage press does just one thing at a time the feel is much better and quality control is almost built into the process. I think lots of reloaders overlook the single stage press. It's worth considering.