I bought one of these last month for $155. Now that I've deprimed 2400 rounds ranging from 223 to 300 winmag I will make some comments.
Well made.
Screws need tightening every 500 rounds so the deprimer stays up at the end of cycle.
If you don't push the plastic collection holder in tight it can pop off and 100 primers go everywhere.
Empty every 50 rounds or primers may pop back out hole.
Put a mat around work area as small bits of carbon will escape during process.
Can do about 12 large rifle cases per minute going fast.
Can do about 3-400 in one sitting before hand gets sore with blisters. Wearing a garden glove helps.
Why do it?
Depriming before wet tumbling makes sure the stainless can clean out primer pocket in one tumble.