I own an ION X 8″ and it has worked great for me, overall I am pretty new to ice fishing but it really does work well. When I bought it I was determined to buy a gas auger but the guys at TB talked me into it.
With that said, when the ice starts to get thicker, like 22″ last weekend where I was, you start to see benefits of gas, especially if you are going to move a few times throughout the day. I will definitely be adding a gas auger to my equipment by next year.