Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must buy for bird lovers!

I have waited for 6 months to be sure that I was happy with my purchase. I am glad I did, since in the first few weeks I was disappointed in the results. The Cardinals that had been coming to my other feeder had just stopped coming by. I watched a couple of squirrels try and get defeated by The Buster, but since the Cardinals hated it, I was neutral. After several weeks a few Cardinals started coming back and by the end of 6 to 8 weeks, they were back at just like the old feeder, but without the squirrels eating all the seed. Needless to say, I am now very pleased with the purchase and would recommend it to anyone with a squirrel issue.