My FA tumbler is pretty weak (on my 2nd after first died) when put side by side the Berry's. I still use both, I'm gonna drive a stake in the FA, get my $40 worth!
I have the big Dillon tumbler as well as the frankford arsenal tumbler. The Frankford Arsenal tumbler quit after about a year, and when I looked it over, I found one of the wires to the motor had work hardened and broken. I replaced the connectors and tie wrapped the leads to hold the movement to a minimum and it is still going strong after three years. The big Dillon is what I use for thousand lots and the FA tumbler is good for small lots. Blitzfike