The late model Pz IV Ausf J (I think) is nice, it has some interior detail and makes up into a good kit.
That's it's good points.
Bad points: rubber band tracks that lift it clear of the table.
The whole range is the same. And, as Rob has noted they vary in scale. Better to start with some of the new Revell models unless you can figure a way to go without the tracks -perhaps in a diorama or similar...