Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Must use Baker's Joy!

I have used this pan 4 times, and have finally perfected it on the 4th attempt. I swore that if it stuck on my last attempt that I would through the pan out the window. The first several times I only greased the pan and the cakes stuck 3 of the times. The key is using "Baker's Joy", a cooking spray you can find in your local grocery store or through the Nordicware website. This spray greases and flours in one. I used it last night and my cake literally fell out of the pan--it was wonderful. It also made the pan cleanup 100 times easier. Also, you can only fill the pan 3/4 of the way or it will spill over.