Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Whoa! This toilet won't compost without the (missing) system

The toilet offered is only the "top" of a composting system that has storage chamber and overflow drain -- plus vent pipe and either wind turbine or battery for venting. It seems a bit disingenuous to list this item as a "composting toilet" as it is only the fiberglass seat/bowl requiring either the rest of the kit (about $1400 aditional) or an existing outhouse with pit (requiring some reconstruction.Envirolet Waterless Toilet (White)Having actually purchased, installed and operated the complete system (kit from Canada, PVC pipe and wood frame from local hardware, labor by myself and a skillful carpenter), the whole operation came to about $3,000. The final result has been used one summer season with excellent results.The item listed on Amazon is only the "easy" part -- the toilet that sit atop most of the rest of the system. No one (no matter how unsanitary) would be able to use this portion without the rest of the entire kit.