I've been a big fan of the Droll Yankee Flipper, and have had it for about seven years. For some reason, even after inserting new rechargable batteries, it will not hold a charge for long. I decided to replace it with a non-battery Yankee Whipper. The reviews appeared to be good and said it was pretty much squirrel proof. Our local squirrels figured it our in less than three minutes. If there is any way a squirrel can reach the feeder from a bush underneath the feeder, they can beat the system. They hang on by putting their front paws in two of the feeding holes and eat out of the third. I've cut my bushes back, but it's amazing how high these squirrels can jump. The Flipper would be the way for me to go if I had to order another one.