I do not own the "One", but do have experience with touch screens. I don't care who makes it... A touch screen should never be used in an environment were falls of any kind are likely. How can a screen designed to respond to a finger press handle a fall of a few feet.
Although the One's touchscreen is very enticing to comsumers, IMHO I think other options should be put ahead on the list.
Best of Luck...!
....Light travels faster than sound. That's why some people appear bright until you hear them speak.