Awesome tool, not for me
I know some serious winter crushers in NH, VT and NY (insert name drop here) that swear by the Fusions...but for pure ice climbing, I've been more impressed with other tools. The angle for me was too much for pure ice routes, but they seem right at home on difficult technical mixed terrain.
I like BD tools in general because you can use one tool to tighten the pick of the other - but only as a patch in the field...and yes, I have actually needed this function. I couldn't get enough torque to really tighten them all the way down while repairing them at a belay. Another pair of hands might make it easier, but at least it wont fall off...