Back when I was looking at getting I to 6.5 creedmoor I found a web page, maybe on snipershide? Where they were comparing Hornady to starline to lapua. They found that lapua was the best in terms of uniform weights and accuracy achieved (no surprise) and that starline was not far behind it. Hornady ran a distant third.
In my own personal testing, I recently weighed a bunch of range brass 223 I had picked up. Hornady had by far the largest variation in weight. Most brands varied +/-3 or 4 grains, whereas the Hornady varied +/- closer to 10. Now, I weighed probably 4x more Hornady compared to other brands so my sample size was a lot bigger, but still, I was unimpressed. Also, I noticed my accuracy was orsewwith the Hornady 223 cases than with the Remington, Winchester, pmc, federal, lake City, or Speer.
Long story short, for me personally, given an option, Hornady is the very last brass I would buy. But it is relatively cheap, plentiful, and it works ok.