So after over a month of trying this device, I'm very pleased. The warranty is AMAZING yet I haven't used it since my batteries have been perfect so far but I have that comfort knowing I can get it replaced asap without any cost to me. The vapor is amazing yet the battery life could be better... I'm no paid person or this brand advertiser, just a normal guy. The cartridges could last a bit longer... but not bad at all. I am loving this ecig, thank you Ecig Brand Starter Kit!