Well I've been thinking about this upgrade over the past 6 months and finally decided to pull the trigger and buy the chargemaster. After spending about a week with the new unit I am just delighted as to the speed and trouble free accuracy and consistency. I first loaded up a run of 460 S&W mag which uses 50 gr of H110 ball powder. The first aspect you realize is that the unit is speed programmed from the factory "conservative". I did a lot of research and of course like most "man things" the chargemaster can be hot rodded with just some simply reprogramming. Speeding up the parameters is especially beneficial if you load the big stuff such as 50+ gr charges. The default setting from going full speed to medium speed is 15 grains under your programmed amount. I dropped that parameter to 7 grains , and this alone was an instant substantial speed up in the process. I ended up tweaking all three available speed parameters and now the thing just flies ! I can have a fresh 50 gr charge ready in almost the same time as to seat a bullet. So safe to say my load time will be cut almost in half. I've even put the chargemaster to the ultimate test with loading the problematic 4064 matchstick powder , and the unit threw perfect 44 gr charges for my 8mm Mauser loads (I did have to do the famous "McDonalds straw mod" when metering 4064). So in closing if any of you are thinking a digital charge system, DO IT ! you have my two thumbs up !
I've used it for my rfle loads ever since but still use the RCBS powder measure for most handgun loads. It handles small and large charges of Bullseye, 2400 and W231 very nicely, but Unique not so well. Guess I can't have everything my way. 
Anytime anyone asks about the Chargemaster I tell them it's a healthy two thumbs up.