This is just a cheap little knife with a sharp draw blade. You use it to score acrylic sheets (up to 1/4 inch or 6 mm) to cut them by snapping them along the score line like glass. This is easier than using a saw. Any make will do; this is a cheap one.
A cool tool is anything useful that is superior to comparable items. If you think this tool is inferior suggest a better one. You are welcome to insult a tool, but comments containing insults to individual people will be deleted. Corrections of fact are always welcomed, if stated politely. Recommendations of better tools are dearly wanted and may be elevated to the front page.