Ordered two covers (one to replace the one on my 2003 Jacuzzi) and a second for a buddy of mine who owns a Baja. Great product at about 50% of the cost of a new cover from the manufacturer! Looks like great quality and my buddy even commented that this new one from Robert's has features his original did not even come with (insulating strip between the two sides facing the tub itself).
If you find yourself needing a cover, give these guys a try...
http://www.rhtubs.com/covers/insulate.htm