First thing is that I think Kirk Alyn was a great Superman. I found him to be very believable as both Clark Kent and Superman, although I still can't understand how no one can recognize that they are the same person, but that's neither here nor there. As a matter of fact I think everyone, including Noel Neill as "Lois Lane" and Tommy Bond (Butch from the "Our Gang" series) as Jimmy Olsen do a wonderful job. The only issue I have is with Lois's hat, maybe stylish back then, but what the ... !!! Actually all the costumes seem to be very similar from episode to episode, perhaps to keep costs down.
Maybe it's just me, but I love these old serials. I just think that they're a lot of fun to watch, a little dated perhaps, but they're fun. There's lots of excitement and action. Superman captures bank robbers, rescues a woman from a fire, prevents a train derailment and rescues miners trapped in a cave in. And this is just in the first few episodes! I think it's great that most of the time the men are all wearing suits and ties and hats, even the bad guys. I guess we were a very civilized well-dressed society at one time ...
Another great thing is the music. Musical director Mischa Bakaleinikoff is in charge of the music for the serial, and it is incredible. Bakaleinikoff's musical scores can be heard in such films as "Ladies of Leisure" (1930) and "The Vampire Bat" (1933), to "The Big Heat" (1953) and "Earth vs. the Flying Saucers" (1956) and many. many, many more.
In the first 15 chapters Superman battles the "Spider Lady" (Carol Forman), and in the last 15 episodes it's "Atom Man vs. Superman" (1950) with Lyle Talbot as the sinister, evil and plotting "Lex Luthor." I wish I could have been around when these were originally shown on the big screen in theaters, it must have been a great experience.
So grab some popcorn and your favorite drink and prepare to be entertained.