Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fails during critical use, horrible support

The light would be great, but it fails during use. The light goes out inrtermittently and you have to shake it or jiggle it to get the light back on. I've tried 4 different types of batteries including Energizers and Duracells, same issue. The Inova website is horrible to navigate, heavy-handed and has no useful information except a flash page that gives a non-toll-free CT number whihc gets you a recording. I sent it in per instructions with the 5 buck warrantry fee, they sent it back a month later saying they couldn't replicate the problem. Of c ourse, it still does it. I'll stick with retrofitted LED Maglites. It's obvious Inova doesn't care about consumer sales very much now that their police ordersare bringing in the loads of cash.