Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: It's great!

The Playtex nurser and the storage kit are the first thing I tried on my baby when I decided to introduce the bottle to my daugther. It looked so convenient because the drop-in liner is preformed and you don't have to deal with twisting and folding those regular storage bags. It also worked great with my Medela pump. I bought two sets so I would have extra storage and one extra converter in case I want to pump both breasts at the same time. By the way, I tried Avent and Gerber bottles but my daughter likes the Playtex nurser the best and she is not confused about switching from bottle to breast.