Only two negatives.
One it’s almost impossible to pour it into the burner with out some dripping down the side or not going directly into the burner. A little spout type lid would be more convenient. 
And a pretty big one, I will say this one scared me a little with grandchildren. My seven-year-old grandson can easily get the lid off and they truly look like water bottles￼.  I wish that looked a little different.￼ 
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