CaT,
I ain't ever used the stuff. I've only run into 4 bears in the wilderness in 16 years...and 3 of those in Ice House Canyon.
Hmmm...does Ice House Canyon count as wilderness?
Technically, I guess. Honestly, heck no.
I saw one bear in Icehouse Canyon, and it was at the trail head at about 3 in the afternoon. I was warned of its presence by a couple carrying their young child at a half run UP the trail, in an attempt to escape the bear. They did not appreciate my laughter, IIRC.