I had one. You know that old saw about pay once, cry once? I now have a 650 so I paid twice.
The Hornady had several features I liked better, the powder measure was better with the quick change inserts. The regular ones are cheap enough you can buy one for each caliber, set it, and just have one setup for your calibers as they will store in a Hornady die box with the dies just fine. I also liked that you could bypass priming, that if you didn't seat one, another didn't feed like in the Dillon. I added the case feeder and was very disappointed. The housing was just flimsy as hell (now fixed with later models) and seemed like a jury rigged afterthought. The case feed for it was extremely cumbersome to bypass, as in NO WAY to bypass, and required complete readjustment everytime something got out of sync in your load sequence.
The last straw was the thing refused to seat large primers completely and was also very sketchy with small. I sold the whole thing with full disclosure and bought the Dillon 650. The build quality is definitely better on the Dillon. Do yourself a favor and buy a Dillon of whatever flavor you choose.