I've got one and it does wonders! Mine is serial number 177, purchased about 4 years ago. I case gage all my reloads (better to find a bad round while sitting on the couch then in the middle of competition!) Before using it, I had a reject rate of about 10 percent. Now there are no rejects, unless a cracked case gets by my initial look thru.
Well worth the money. I have two sets of dies, .45 ACP and .38 Super.
It boils down to making sure the ammo goes bang when you _have_ to have it go bang!
For me, it's just one less thing that I have to worry about.