I'm always scared when purchasing things I see online, let alone an ad on Facebook. But let me tell you what, ordering my 1/2 gallon was the best decision. It's too cute to not want to take everywhere and has really helped me drink more water. I've actually completely stopped drinking sodas and teas. I went from maybe one small bottle of water a week to easily this 1/2 gallon in a day. I'm purchasing more soon for birthday gifts because everyone needs to have one.