It's totally not worth it. I bought one just to check it out. I got the Asura Sword, it had identical base stats to the Shura Broadsword. It did take the red nature rune though, so im assuming that the life and attack stats growth is slightly better then the shura broadsword. And only 2 of the 6 stats were orange, and even those orange stats seemed lower then the original orange stats of the red gourd.