I have had several very persistent squirrels at my feeder for the last 5 years. I have tried a number of different “squirrel proof” feeders and two other baffles to no avail. But after using this one for three weeks, not a single squirrel has made it onto my feeder! So far, I would rate this 100% effective!
After trying several lesser made covers from another manufacturer, I bought this and have no regrets. Like other Droll Yankees products, this is built to last. Very impressed with the quality and design.