Instruct: Classify Amazon reviews into positive or negative sentiment
Query: New model requires button be held

I had an older Inova keychain light from a while back, so I bought this after my older one started showing a considerable amount of wear and tear on the rubber button. The new one forces you to keep the button depressed to use the light, which makes the product nearly useless as it's not an easy button to keep depressed. I ended up swapping out the innards of my old light into the new case, but this'll be the last Inova keychain flashlight I own.