Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Would be 5 stars if I could clean the lid

This cup would probably work really well if you use it for clear beverages. It is NOT good for coffee if you take milk or creamer as there is no way to clean inside the lid. A rinse just won't work & I wrestle with it & get pinched fingers trying to pry everything up to clean inside. Got a nasty mouthful of caked-on creamer one day. I still use it occasionally because it seals perfectly & I can toss it in my lunchbox without a leak, but the lid does get nasty.