I received this squirrel proof bird feeder, installed it on the edge of my patio, and filled it with bird seed. It took awhile for the birds to see it and actually feed from it. It has been fun watching the squirrels try to climb up, only to slide to the ground! The squirrels cannot get a grip on the green plastic cylinder. They try a few times, get frustrated, and leave! It definitely works well for me. My only concern has been the silver pegs the birds use to sit and feed are much too short. To be much more attractive to the birds, I would double the length of the pegs. All in all, a very good bird feeder!