I recently switched to an A&D FX-120i paired with the AutoThrow/AutoTrickler V3, and I'm flat-out amazed. I had used Pact/RCBS dispensers similar to the Intelldropper for decades, but the V3 setup is faster (~10 seconds) and more accurate (+/-0.02 gr); that's with 100 gr charges of Reloder-33 where one granule is 0.04 gr! Once in 100 or 200 charges it will drop 2 granules instead of 1 when it's finishing a charge and it goes 0.04 gr over; i just keep tweezers on hand to remove one granule and then load the charge. With a finer-grained powder the performance my be even better.
I'm of the buy once, cry once school, and the V3 setup is the way to go. The only excuse for not buying one is to wait for the V4 to be available next year; that will make some used V3s available, which should be real deals.
The Intellidropper should be good for use out to 300 yards or so where being off by 0.1 gr won't make any difference, but if you'r interested in long-range shooting (500 yd to 2 miles), then the V3 or V4 is the way to go.