“Looks great but way too difficult to open the flip top. I can get it open after running it under hot water, but after I close it. it's all locked up again, so not convenient in a car or at work without hot running water available to hold it under.. Very disappointing.”
“The stainless steel cup is nice and holds quite a bit but the flip cap on the lid shuts so tight I can barely flip it back up, so I only rated it a 2.”
