Matt, I've been using a Hornady for about 3 years now, no problems at all. There are options in the set up to slow the final slow trickle cut in point which help with very fluid ball powders etc.
Dave at the Shooting Shed makes a "thingy" which fits into the dispensing tube to reduce its diameter to help with the extruded stick powders.
SHED Hornady Lock N Load Auto Charge Adapter Tube Thingy, Shooting SHED
Those photos are of my dispenser trialing the first one made
Mine (throwing N140 or 150) will throw about 98% of charges to -0.0 + 0.1gr with just the odd + 0.2gr charge being thrown.
If you know anyone going to the USA they're cheap as chips, around $200 (£148), in fact I may pick another one up when we go over in June!.