I got this bottle as a gift and I'm obsessed! I have been using it for a month and it always smells clean and fresh (I have not rinsed it once) besides keeping my water cold. I think the UV cleaning also makes the water taste better but that may be in my head lol. I only charged it once when I got it and it's still going. It's also a big plus that it fits into the cupholder of my car (I've always had big flasks that didn't fit). I haven't tried it with hot drinks yet but I look forward to it.