Easier on the thumbs - Caldwell AR-15 Mag Charger

The first 10 minutes with this thing I thought to myself; this is a huge waste of 60 bucks. But I kept at it, got a system and I'll say this. It's not a tone faster. But it's insanely easier on the hands and not so repetitive. This is my trick:
Don't load 6 rows of 5, row 7 rows of 4. It's easier to grab 4 223/556 than 5. And place it at an angle, not a flat surface. I use a keyboard station.
This is the only speed loader for magazines I've purchased, so I am not able to compare it to another.