Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Waste King and Amazon

The product comes with all you need to replace an old ISE unit. Amazon will try to sell also the splash guard and stopper, as well as an adapter kit. The splash guard and stopper (I bought) are included with the unit, so no need to purchase another. The adapter (I did not buy) is unneccessary. One star for Amazon upselling unnecessary stuff.The new unit replaced a 16 year old ISE Badger 1, the case of which cracked after many years of average performance.The 8000 fit in the cabinet fine, despite being a larger unit, and the discharge and dishwasher intake were right where they needed to be. I had to replace one drain pipe to the other sink due to my plumbing/ drain configuration.Total replacement time: just under one hour.Haven't used it much yet, but trust the other reviews and Consumer Reports to tell the tale, otherwise I wouldn't have bought it. This review was primarily to address install concerns.