I had a Pact digital scale and powder dispenser and I had trouble with it. I had to every couple of cartridges re-calibrate the unit and this was even after I sent it in for repair, and the dispenser didn't work when I got it direct from Pact and had to send it in for repair and then when I did get it back I had used it for 300-400 cartridges and it quit working again. Over all I have not had any luck with their products, some have but I didn't.
I got rid of the Pact and purchased a RCBS Chargemaster and it has been great and I would not be without one now.
Pact at one time made the RCBS scales and dispensers but not anymore, if RCBS was having the same trouble as I was I can see why they changed.
If you can get the Pact real cheap it might be okay but I would go with the RCBS Chargemaster even if it is a bit more money because if you do have any trouble with it RCBS stands behind their products and they will make it right with you.