Yep, it is lovely. I've worked with it in the past at a defence facility and it frightened the hell out of me. For me, the advice John Clark gave in his book "Ignition!" when talking about spillage says it all: "For dealing with this situation, I recommend a good pair of running shoes"
Now and again someone will ask me the name of the most powerful corrosive in existence: I tell them to forget about antimony pentafluoride in fluorosulphonic acid and think of chlorine trifluoride instead. The very fact that exposure to the substance can leach the calcium from your bones at an extraordinary rate without you knowing until you fall over, sends shivers up my spine.