Facebook Advertising via "Boost Post"...

Without going into a lot of detail, I'm a member of a local organization and I assist with organizing several annual local functions. We have a few thousand likes on FB and I decided to use FB's "Boost Post" to increase the visibility of a post that advertises our event with a flyer attached.

My question is sort've post facto, but it was relatively inexpensive and even if it proves ineffective, there wasn't much of a risk in spending the money. What I'm wondering is if anyone else has experience paying for posts to be boosted and if so, what was it?