So... anyone used one? Is it worthwhile if a child is small enough to fit nicely in a crib still but... flexible... enough to be able to get their leg up on the rail and... scary... enough to not realize it will hurt when they fall over the edge? I know it's to keep the child in and the pets out (we don't have any pets) but I'm curious whether it really DOES keep the child in, or whether I should be looking in a different direction?

For Emma this was suggested to us as well a year or so ago but she was really already getting big for the crib. My 'other' child isn't too big... just too skilled in the ways of the monkey :)

I know a few bloggers who have used them so thought I'd see if there was any feedback from you all before spending the money to find out myself :)

THANKS!