I've got the RCBS set up and wouldn't be without it.
Accurate as abeam scale. Depending on how quiet your reloading bench is it will usually throw charges right on the money. I placed a lite foam pad under the scale and it took some of the bench vibration out and settled the scale down. Its very handy if you decide to weigh bullets or cases.
Its very useful on load development, punch in 26.5 load 5, punch in 26.8 load 5, and so on. No twisty turney check check. When running a same weight batch, just punch in the number, 28.6 hit dispense and it whirles it up. Dump off and hit dispense again. While its dispensing the next charge you can take care of other chores. Seat bullets, clean primer pockets, what ever. Just be aware the scale unit is very sensitive to bench vibrations and the scale display will jiggle and you may not hit your load mark.
Yes it takes longer to throw 80 grains than 30 grains, and you have to recalibrate when you change powders, or turn the unit on but all in all I think it was worth the expense.
I guess it depends on what your looking for whether or not you'll find the unit worth while. If your cranking out mass quanities of bang bangs its slow. If your taylor making the best loads you can then its a worth while tool.
JS