Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Litter Locker Plus Refill Cartridge

The product along with the Litter Locker itself is easy to use, well made and until now easy to find to reorder. Locker stays clean because of design of dispensing bag configuration. I actually use it for doggie bag disposal...it's more than for just kitty clean-up! The Litter Locker appears to no longer be readily available but I hope refills will remain so.