Classic is often another word for "outdated" as in this case. Yet, that doesn't mean this is a bad show. While the animation and sound quality really show its age, the show is so true to the dark nature of the comic book that it scores major points with all nerds geeks and fans like myself. The storylines are great and deal not only with Iron Man, but the emotional life of the man behind the mask, Tony Stark. Thus, when deciding if this show is for you you must weigh the great stories and trueness to the comics against the awful and outdated animation style of the 60's.
My final review: By no means a work of art, but it is something definately worth watching if you can stomach the aged style (especially for comic book fans).