Your device is truly a game-changer. It's not an exaggeration to say that so far it has changed my consumption habits for the better and has made for a positive change in my health. I use less matter and feel better and being actually able to taste the differences in product has truly improved my life. I wish your replacement screens/o-rings weren't so expensive, but that's a minor complaint for a product I can only rave about. Discrete, ergonomic, solid, and functional. I have no problem telling people that your product is great and really makes for a paradigm shift.