For what it's worth, I've recently gone through three of the hand primers.
I had a Lee for about seven years. I loaded a few thousand rounds on it. My Father in Law whom I had gotten it from had been using it since the mid 90's, so...when it died on me a few weeks ago, it was an honorable death. It always felt...kinda....chintzy? not real strong, tight, secure, but...it was very user friendly, and as I've mentioned, it had already more than earned it's keep. a slight PITA was that the primer tray was smaller than most primer containers, leading to lots of touching and fiddling, and spilling over of the primers.
The problem was that I was right in the middle of loading a few hundred rounds of .45 Colt to take my wife to the range for her first time in many moons, so I didn't have the time or inclination to wait for new parts. I trucked off to the local sporting goods store to replace it IMMEDIATELY.
I saw an RCBS, and remembered that my closest friend uses one. I called him on the cell real quick, and asked his opinion. He bragged it up and said it was the greatest thing since sliced cheese, so I bought it. As much as I like other RCBS products, dies, presses, etc. I HAAAAATED that damn thing!! It was NOT user friendly at all, it was a pain in the butt to change around, kept getting primers tangled up, stacked, etc. It did have a nice big tray, and the cut off was nice. When it was "in the groove" it worked very smoothly and positively, but those times were rare.
Finally, one morning I had MORE hassles with it double feeding primers (Incidentally it seemed to work smoothest with one primer stacked on top of the other!

) No, that was not a deliberate thing, but rather a disturbing finding.
Anyways, I resisted the urge to throw it out the window and shoot it, so...I trucked back over to the Sporting Goods Store, and traded it back in on a Hornady hand primer. I've only primed a couple hundred rounds with it, but so far it's the best of the bunch, very user friendly, large primer tray, positive feed, primers stay like they're supposed to...it's all around smooth as all get out. I don't know if it's in my head, or for real because of the smoothness, but I primed a hundred rounds in the fastest time I'd ever known of with that thing.
For the price, I'll probably get another Lee one day for back up, especially since I already have all the inserts for it, but I'm darn happy to have my Hornady.
Judging by how many people brag up the RCBS, I'm guessing that's more of a personal taste/ subjective thing. In any case, I'm happy to have another "major" issue to argue about with my friend over morning coffee. He's very brand loyal to RCBS, where as I'm a bit more of an RCBS/Lee/Hornady/Redding/ whatever else works good or is a bargain kinda guy. It keeps things fun and interesting.