Cracked after five days use!
There are better products that last longer! Unfortunately this product left us very disappointed. Five days after putting it to use it leaked out the water from a crack that it developed from the top to the bottom of the cup.  We have used the humidifier cups with the off white lids and had no issues, even the ones with green lids, but these black lined ones have issues, too pricey if you only get a few days use out of the product.
Rating: 3 stars