It weighs something like 20 lbs empty which I think is very limiting as to what you could put in it given the checked bag limits. I also think it's insanly expensive.
I would go find a place that has one and try it out. Make sure it works the way you expect it to, as the power assist only comes on at certain times. It's range was only one mile, which may or may not be enough for a couple of long connections or whatever before it needs to be charged for eight hours. Make sure the electronics, battery, charging area, spare battery compartment and all that is not taking up half the bag.
I'm not saying any of those are negative things, just things to be aware of. When I first heard of this I thought it was pretty cool, but when I started looking at the specifics, it didn't do it for me.