Vista Squirrel Proof Birdfeeder
Great for Finches, Chickadee, Nuthatch, Sparrows, Siskin
It looks great but the birds wouldn't use it.
1) The gap between flap and feeder tray was too small for finches' heads to reach in and get the seed. After a week of birds trying to use it and giving up I snipped the sides of the 'flaps' and bent them up about a 1/2 inch to make a bigger gap. Within minutes there were birds on it feeding happily. (It's no less squirrel proof after this mod as far as I can tell).
2) The bars in the seed tray at the base are too close together if you are feeding whole sunflower sunflower seeds which don't flow out into the tray. I snipped out a couple of bars on each side and that made a difference too.