I probably read the same thing and bought some of the more recent Korean-purchased version, and it _is_ quite wonderful.

I've always hated whiteboards; when I leave something up on my chalkboard for a few days/weeks, I can still erase it. If I need more cleaning, water works. I don't need some foul smelling, expensive, concoction to clean the damn thing. (Yes, I know the "tricks" of toothpaste or drawing over the stains; the latter counts as "foul smelling, expensive", however.)

Any dust that gets on my clothes (never happens, but a common complaint), is removed with my hand easily enough.