Looks really good, actually! If it didn't require you to remove your stock hatch and parts of the convertible top mechanism it'd be very interesting. As it stands, this ends up being a "conversion" rather than a "hard top" and that doesn't really interest me.
Also, their "Zeinvent" product really cheapens their company. Talk about ugly and cheesy!
http://www.zeintec-usa.com/Zeinvent.htm