Before I started watching toku (which is admittedly not long ago), I had been really into Ishinomori's works in general. Now, I've seen Android Kikaider the animation and read the manga. There's a lot of differences between the two for sure, but I liked both. I also enjoy Showa era toku pretty well, but since I've seen these two other versions, I'm not sure if watching Kikaider will be earnestly worth my time since there's a lot else on my list. Is it good enough to bother if one already knows the story relatively well?

IIRC the toku show takes a lot of liberties with the plot, is generally more lighthearted than its other media equivalents and goes for a more MOTW focus due to it being, well, a Showa era toku show so I'd say if you don't mind that and wanna see more MOTW than you did in the manga or anime then it's probably worth at least checking out, especially if you like Kikaider!