Has anyone tried this?

http://www.bhphotovideo.com/c/produc...rocessing.html

It seems easier & cheaper than buying everything separately (up front anyway--I assume the more expensive quantities are bigger and process more, but there's no indication of volume in this link). But I'm curious about the packaging. Seems more difficult to reuse chemistry, but posts above indicate that Kodak is one-shot unlike Tetenol, or is that only a suggestion?