Does not recommend this product
I have tested this system on orchids, it wont work, Orchid roots do not attach to a constantly wet surface. Also it increases the chance of root rot. In their photo they clearly tied a flowering plant to the vessel.
I also tested this system for growing microgreens. Most seeds fall off before germination and if you use mucilaginous seeds, grey mold grows on the roots not long after germination.
This is purely an aggressive videography trick based advertisement campaign to sell an old failed idea. Also massively overpriced. It would cost less than $6 to make and they sell it over $60. A massive quick payday for them and a big disappointment waiting for poor customers. They are not even in the U.S./EU so you wont catch them...