Primer tools are like any other tool. Some say "Buy this" and others say "no, no, buy this one, it's so much better".
What I find interesting is that among the Bench Rest Shooters that show up during the week while I'm shooting, I see just about every hand priming tool made in use by these guys.
Funny thing is that the "so-so" shooters all have Sinclairs, Century 21's, etc. One guy who has won more BR Matches and titles than anyone else there just uses an old "Round Tray" Lee. Dumps in a tray of primers, loads up some ammo, then proceeds to shoot group after group of single holes. Not ragged, but groups that measure less than .1" more than the bullet size.
Pay $100 or more or pay $20 or so. They all prime cases.
FWIW, I have the Hornady "Improved" hand priming tool and after a couple trips to the range with more primer related misfires than I have has in 30 years total, I went back to a Lee XR that I got to replace my original Auto Prime bought back in the late 70's. No more primer issues.