I love it! I have used it locally and out in LA when my son and I lived there. My daughter, my son and my parents use it now. It is a great way to get rid of still useful things that you don't want to keep until garage sale time! Also a great way to get things. I have gotten and given some pretty good stuff and stuff that would have normally gone in the garbage.
I don't do curb pick ups. You really aren't supposed to on freecycle. If I want to do that, I just put the item out front with a free sign. Other than that, I put the item on the porch with the person's name and let them come get it whenever. I've never had a problem. Almost all of my pickups have been from other people's porches as well.