How the show is depends on what sort of attitude you approach it with.
If you listen to it only through modern ears, it is predictable, it has two-dimensional villains, it is full of stereotypes (nearly all cops are Irish, for example, and anyone described as having squinty eyes is invariably a villain), and it makes everyone other than Clark look galactically stupid. (Clark makes tons of mistakes that by rights should have given him away, but no one notices other than occasionally to joke, "Who do you think you are? Superman?") And don't get me started about how condescending it sounds to my modern ears to have Lois Lane always referred to as a "girl reporter."
But if you take the show for what it is and listen to it as a period piece, it is fascinating. It really does show what a different world we live in now from the one in which Superman originally sprang.
If you are willing to come at the show with the understanding that it was written well over half a century ago and accordingly give it some slack, I would recommend giving the show a listen, if only for its historical value. You can find copies of it for free or for a very nominal fee on iTunes and in other places on the web.
Joy,
Lynn