When placing any kind of order, you have to look at the seller's reputability and decide for yourself. This project appears to be coming out of a MIT Media Lab

When placing any kind of order, you have to look at the seller's reputability and decide for yourself. This project appears to be coming out of a MIT Media Lab project (perhaps this could use confirmation), and the Heritage Chemistry Set is from what seems to be a well-respected shop. It might not be necessary to lump these projects together with other fly-by-night crowdfunding attempts.