No matter what anyone may tell you, making the jump from a single stage or turret press to a true progressive isn't trivial. No matter which progressive you choose (and as far as I can tell, all of the models mentioned in this thread WILL do a satisfactory job), be aware that you DO need a certain basic level of mechanical aptitude, and a willingness to be patient and learn the quirks of whatver machine you buy. And they all have quirks, no matter how much fans of this or that "color" of machine may tell you.
I started off on an RCBS "jr" press that was given to me about 40 years ago. I then moved to a Lyman Spar-T for pistol reloading, and an RCBS Rock Chucker for rifles. My first progressive reloader was a MEC Grabber shotgun press. My move into progressive pistol reloading was on the Lee Pro1000. I liked the first one well enough to buy another, and those two served my needs for the better part of two decades. I finally decided I wanted to spend less time and crank out more ammo, so I sold my Pro1000s and purchased a Dillon XL650. I mention all this equipment only to point out that all these machines have reloaded for me to my complete satisfaction. I have also contacted all of the manufacturers mentioned above at one time or another, and have invariably found them to be helpful and competent to work through whatever issue I was having with their equipment.
The price range of progressive loaders is great, and as with anything else, you get what you pay for....which is not to say an inexpensive machine won't work, it just won't give the performance of a better machine. The big questions before you make a move relate to how much you have to spend, what calibers do you want do reload, and what output do you need? Until you have definite answers to these questions, the brand of equipment is irrelevant.