Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good in car seat

There is a reason not to use this and it is simple, if the unthinkable happens and you are in an accident and your child is injured or god forbid killed you have no recourse whatsoever because you have voided your car seats warranty. All car seat manuals specifically state that the use of ANY after market product, which this is, voids the warranty of the seat. Just something to think about, it doesn't matter if there isn't any padding or anything else, simply by using this product in the car seat you have given up any legal recourse you might have if for some reason the seat fails in an accident even if the snuzzler had nothing to do with it because you voided your warranty and went against the specific instructions in the manual which clearly states not to use any after market products in the seat.