Another hand held user here. I really like getting the seating feedback. I load for semiautos only.
The main advantage of that feedback is being able to feel if a primer seats with almost no force at all. It's an easy way to weed out that particular case because having a primer fall out of a loaded round, while in a magazine or during the time it's being stripped out of the mag and in to the action, sucks a bunch.
I've been using the Lee priming tool, but I break levers all the time. After doing some research, a lot of folks really recommend the RCBS Universal tool. When I run out of my stock of levers, I'll be upgrading to the RCBS product.