I've been reloading since the early 1980's, both pistol and rifle. I shoot a lot of .38special, .45acp, and 9mm pistol. And a lot of .308 rifle. As well as a mix of other common and antique calibers. I have a collection of dies for about 20 calibers. I started loading with an RCBS Reloader Special kit that had just about everything I needed to start reloading. A couple years down the road I was shooting more pistol and wanted to try a progressive, so bought a relatively inexpensive Lee 1000. Sometimes the Lee 1000 was fine and sometimes it took more fiddling with than it was worth. When I started shooting highpower rifle competition, where I was shooting 100+ rounds of .308 every week, I decided to upgrade to a Dillon 650 progressive press and I sold the Lee 1000. Later on I switched to shooting .223 for position shooting (accross the course) competition and use the .308 for prone long range competition (I shoot mainly service rifle, AR 15 or M1A).
I shoot pistol for practice, not competition.
The Dillon 650 is great when loading 100 or more rounds of the same load.
For loading smaller quantities, or when I want the absolute best control and accuracy I still use that RCBS single stage that I've had for 40 years, and weigh each individual powder charge.
I also have a Lee Hand Press that takes standard dies, which I use once in a while for depriming or sizing cases while watching tv or something like that. Or to take to the range for emergency cartridge construction.
I'd recommend a single stage press for quantities up to 100 rounds per batch. There's always more setup work needed for a progressive which negates its speed advantage when ever small quantities are loaded.