So things that people design, invent or engineer aren't always successful. But the number of those that make it to market and are terrible sometimes surprises me. It can be as small as a location of a pin to it missing something. If its missing that crucial thing its a bad design. At the end of the day it comes down to ergonomics and how they play a role in the usability of the item. (This of course is purely subjective and has no bearing on the amount of effort the company or firm put into designing the item.)
