Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A 'must have'

Don't think we could have gone through a winter without this product.Baby can fall asleep in this quite comfortably when strapped in on your walks or when out shopping.The muff along with the plastic weather protector means that baby can sleep in a comfortable and protected environment while you deal with the cold, or wind, or rain.You can zip off the warmer layer in the muff so that you can use it in mild weather as well.Definitely a must.