I always tell newbies that they should start with a single stage press. There is so much to learn don't add the complexities
of a progressive press. Once that bullet goes into the pistol case there is no way to tell what you put inside it.
I have been loading for fifty years and I can tell you one thing. There are those that have and those that will.
With my rifle rounds I weigh every finished round for a powder charge or worse. You can't do that with pistol rounds.
If you have to have a progressive get one that indexes automatically. Much less chance of a double charge. Remember
that 9mm only has about 4 grains of powder. Mixed cases can vary that much. Learn the the in's and out's first.
That single stage press will always come in handy down the road. Happy loading.