I use to collect progressive reloaders. At the height of that I suppose I had about three dozen. Some were very easy to use. Some were virtually impossible. This RCBS was somewhere in the middle. The thing that I liked least about it was that it could reseat spent primers. The primer pin would stab the old primer and then pull it back up and reseat it. Weird.
RCBS has a new progressive out, model 2000. Beautiful machine. Using their strip primers makes a real positive improvement. One of the best machine yet.
Skip the piggyback. Buy a 2000. It is even better than the corresponding Dillon.