[mikeash]

I'm skeptical that any product can be hard to explain in a useful way with just text. What exactly do you do with it? What's an example use case? What's the mirror for? All of these things can be answered in text.

However, given that I don't understand what it does, perhaps I'm not qualified to say that here.

[kbenson]

You didn't ask for just text, you asked for one or two sentences. I don't think this product can't be explained through text, just that it's a case where a very small amount of text will not do it justice, and may do more to confuse people than help.