As with any spiritual teacher, instituion, ect, when they try to sell you something, run away!
Consider this quote from the "Products" page of the site:
"All the products we offer on this website are specifically related to the cultivation of Dao."
You may find my criticism a quibble, but I do hope you will consider it. The claim that incense and teas are somehow helpful in the "cultivation of Dao" must strike anyone who has read the Tao-Te-Ching as nothing less than silly.
If you are interested in Taoist philosophy, I recomend the following website:
and, most importantly, reading the Tao-Te-Ching.