“Stable, but lid is a problem”

“The good: Short and squat design won't tip, keeps drinks reasonably hot, rugged construction. The bad: As mentioned by others, the lid is won't stay put. Handle is not comfortable or easy to grip for big hands,especially when cup is full and has some weight to it. Be careful when washing this cup, as water can get between the double walls. That said, it works well enough for the office or home where you use the lid for transporting but not for drinking. Not a bad cup if you don't need the lid and you can get it for next to nothing like I did.”