No idea about the Iclear, but twelve hours and several juices into the Protank and I'm already wondering how to persuade the OH that I need a second - it's just, well, awesome!! Very easy to fill, clean and put together (as long as you don't make my newbie mistake!) and the taste and vapour are unbelievable. I've just delivered my friend's one to him, he promptly filled it with his preferred cinnamon juice and was in ecstasy about the difference from a CE5. And it looks great too!