Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Researched this product and it is GREAT!

I read about a thousand reviews on diaper pails before buying this one. It is so nice. It is easy to use, it hasn't ever let out oder into our baby's room and best of all - hands free! You just step on the pedal and throw the dirty diaper through the trap door. It's extremely easy to change too! You pull out the bag with the dirties in it and there's a SAFE slicer on the door that you cut the bag away with. Then tie a knot on the bag that still hanging and start filling it with more dirties! There are not perforations on the bags, so you can cut them to any size...therefore, if your baby did a real stinky, throw it in and tie it off even if there were only one or two diapers in there. Or keep filling it till there up to the trap door! Perfect system. You do have to buy particular refills which are $19.99 for three, unlike Diaper Champ, but this is soooo convenient!