I bought this product as I was sick and tired of that horrible "white mark" powder like effect that seemed to be a given with every spray deodorant on the market. This genius product for Sure has made the white marks I so much dreaded extinct! The bottle is easy to hold, especially their newly developed design. The button is easily pressed and controlled and I have not had an issues with the nib breaking yet which is a unbelievable! Unlike other deodorants, I can spray the deodorant in the comfort of my bedroom for a good 5 seconds on each underarm without having to suffer from chocking from the dry fumes. The deodorant can be sprayed in a room full of people without someone coughing or complaining. Furthermore, the product does offer whit mark protection! I could change my top ten times within 5 minutes of putting the deodorant on and not have white marks appear on any item! In addition to all of this, the deodorant seems to last all day! I am a student and I can put the product on in the morning and still know I am protective at the end of a very busy day. The only disadvantage to this product is it does not protect against embarrassing sweat marks!