I have a LNL Ammo Plant, it came bundled with the case hopper and bullet hopper. It is the only press I have ever used so I can't give you feedback on other brands.
I found the press easy enough to set up however, I took my time and slowly got it set up over the course of a few days. Hornady ships a series of DVDs with the press and they have lots of instructional videos showing how to set up the press and other components. They also have great phone support and a decent manual, so they have all the bases covered depending on whether you like to listen, watch, or read (or all three).
I have not had a parts breakage that was due to wear. I don't keep an exact count but I'm getting close to 10,000 rounds loaded now, the press is showing no signs of wear. I have broken some minor parts due to my own clumsiness. Every time a quick call to Hornady has a new part in the mail. Their warranty support has been fantastic, they send replacement parts no questions asked. I really appreciate a company that stands behind their product and I can vouch for Hornady when it comes to this. I hear Dillon is every bit as good on their product support, so I don't think you'd have any issues with them either.
I chose the Hornady because of the bushing system. I like having to set dies just once and then I can leave them locked in the bushings and I don't have to touch the dies when I do a caliber change. On average, I'm doing a caliber change now in about 15 minutes between 38 special and 45 ACP. I could go faster if I wanted but, I still take it slow just to make sure I don't miss something.
I consistently read three positive things from other users of the LNL AP. First, the powder measure seems to be very good and lots of people speak positively about consistent throws. Second, the bushings make for easy caliber changes, which I've already discussed above. Third, the press has zerk fittings which allow the user to easily grease all the critical lubrication spots on the press. Greasing isn't something that needs to happen often (I've only done it twice) but, it's easy to keep the press sufficiently lubricated without making a mess thanks to the zerk fittings.
No matter which progressive you go with, if you plan on later adding a case feeder and a bullet feeder, I can promise you will be very pleased. In my case the press is located at the range (farm house) and it's pretty great being able to walk inside, crank out 100 rounds of ammo in no time, and then go shooting.