If you've actually used bear spray, please share your experience

I’ve been carrying bear spray for three years, but fortunately I’ve never had to use it.

Things I’d like to know specifically:

• From what distance did you spray?
• How did the bear react? Did it run away immediately?
• Was wind direction a factor? Did any spray hit you?
• Which brand of spray was it?

I think this would be helpful for people considering a purchase, so please also share any recommendations and how you carry it.