Belzelbub
Contributor
Speaking of good interfaces.Whilst the iPhone keyboard was soft, the user interface was so intuitive that it was a joy to use; literally "press the button to go 'Home'" was the only instruction you needed.
My buddy currently uses a Cressi Michelangelo dive computer. Recently, he commented how the one button interface was a pain to work with. He asked me if changing gasses was easy on my Shearwater. I handed him my powered off Perdix and said, “You tell me.” The only instructions I gave him were that you need to hold both buttons to turn it on, and after that it was just single button presses. I think it may have taken him around 20 second to find the appropriate menu and change the gas.