Pretty good
The packaging was a bit of a mess, but I liked the inclusiveness of the kit. The quality of the product was good, not great - I think it'd be fun for a supervised project with the kids but I've gotten better results with similar products I've bought separately. I also wish the instructions had included a note about tempering the mixture for 20 minutes to avoid a gritty final product - had to learn it the hard way!
Rating: 3 stars