I've had a tube for three years so its not new to me but had to have it replaced in Feb. the ballon type, had to have it replaced in Mar. another ballon type. Now having that one replaced next week with the button type. Needless to say I am frustrated and would like to hear any pros or cons for the button type. I cannot have the type that must be dragged down my throat which is what I had the first time three years ago.