Great looking product which deserves a place alongside the Gorilla Glue, Titebond, epoxies, liquid tape, and marine sealants. It looks like it would fill a niche the other types of
adhesives just can't solve. A starter kit runs $16.56 delivered off their website, Ebay at $13.75 net, and Amazon at $11.39 net. The Amazon single refills are $8.28 net however.
The best deal looks to be off Ebay at $16.95 for the kit plus one refill.
Many thanks to Mother esox for the useful lead.