DISCLOSURE: I received this product for free for testing and evaluating purposes. All opinions are my own.
I have past experiences with different ice molds and this one is by far one of the worst ones I have experimented with.
The initial use for testing was for regular ice molds (the intended purpose) and they are near impossible to fill because the holes in the top are so small. I felt as though having smaller molds would make for easier drinks and quicker freezing however it takes about the same amount of time to fill it and longer to freeze.
It does NOT hold liquid very well as there is no type of seal around the edges and it is extremely flimsy. The silicone material is near paper thin and its very easy to over-indulge its hold capacity without even managing to over fill. Next test I attempted bath bombs (of which I also have experience in so this wasn't a new thing for me either), I had more of a difficult time keeping the bath bombs compact enough because again, no seals to add weight.
The only thing that I found a good use for with this mold was for Play-Doh. My daughter packed in the Play-Doh and was able to make near perfect round balls and was even able to make a rainbow sphere by layering colors - so for that purpose, it might be worth something but certainly not for its intended use.