I have the first generation RCBS electronic scale/ electronic powder dispenser. These are all manufactured by PAC to RCBS' specifications!
Negatives:
I find the system to be very good with fine ball powder and it goes downhill from there! Using a good beam scale, powder dropping the bulk of a charge and trickling the last few tenths you have the same rate of charged cases per hour! With a good powder drop and suitable powder you can load 3 to 5 times as many per hour (that is why BR shooters do it that way!) About 15-20% of charges go overweight with extruded powders, and need redone! Depending on room temperature, start-up time is 5 to 20 minutes (including calibration)!
Positives:
Fantastic for load development. fairly quick for 5 to 10 rounds of one load. Very accurate charges, You are Below weight, On weight, or Over weight, in bold numbers! The ability to separate bullets or cases by weight, can't be done any other way with accuracy!
My Opinion:
You will need the other precision equipment for you 6.5 Creedmoor and 223 bolt action ammo. You can get by without the electronic system, put your money in a very good scale (RCBS or Ohas 5-0-5 or better) and a very good powder drop (Redding BR-30, Lyman 55 or better. The Harrell are big $$$, but they are the best!).
All endeavors in life are full of decisions and compromises!
Ivan