I use the Hornady 2.0L cleaner with hot water, a teaspoon of Lemishine, and a squirt of Dawn dish soap. It does a good job on brass in a 30 min heated cycle. I tried the Hornady brass solution, it didn't impress me.
I clean up to 25-30 rifle cases placed vertically at a time, which is fine for my needs. The more brass in the tray, the less effective it becomes since the larger volume of material absorbs more energy.