Opinion on cordless drill auger
the ion auger has a gear reduction to allow for better performance with larger augers, but has no benefits on 6 inch and smaller setups. It is really tuned to 8 inches though and I was told by them that the reason you have to buy 10 inch auger separate is because it does not work well and they want customers to have an 8 inch auger on hand to reduce customer complaints.
My Nils 6 inch drills just as good as lazer 5 inch. That is significant statement because area of hole is 44% larger.
Put an 8 inch auger on that and let's see how the speed compares. I use both types. I use the Milwaukee and 5 inch lazer for panfish and when I need a bigger hole, the Ion. If you have a hand drill with enough torque you could probably get by without the Ion and just have a couple of different sized augers. Both scenarios would work. Mrt.
The wood safety feature is a must, in case the drill let's go.... Which hasn't ever happened, but hey.