Instruct: Classify a review into positive or negative sentiment.
Query: Doesn't Work with "Happiest Baby on the Block"

I got this because people who use the "Happiest Baby on the Block" system advocated this product. Boy was I disappointed. Happiest Baby recommends a tight, very tight swaddle, and this thing is in no way tight. While it may stay closed, it doesn't simulate the womb in the way a swaddle should. I found the hospital blankets work best (yes, I stole some).