A life lesson I got in priming tools is that for the last 20 years I have been scared to death of any priming tool that puts the primer being inserted into the shell directly adjacent to 100 or so more primers.
If something goes wrong (yes, you will at some point in time set off a primer while priming a case if you do it enough), it is usually no big deal but you don't want 100 more going off in your face as well.
I personally either use the tool previously mentioned a couple of times above that I load one primer at a time into (The RCBS bench priming tool with no auto feed), or I use a Dillon RL550 that moves the primer out of the STEEL ENCASED primer magazine that points UP and AWAY from your face, and slides it well away from the magazine before you try to insert it into the case.
There are other setups beside what I mentioned that meet my self-established requirements, and some that don't
Just something to think about, and wear glasses at the very least when reloading.
And, while a separate priming tool might seem redundant to some because just about every press on the market can also prime on the downstroke of sizing the case, the specialized tools are optimized to put the leverage in the part of the stroke that it belongs in to get a better "feel" of the primer being inserted properly.