Yeah, William Zabka plays it so well...every episode manages to throw in a few classic non PC lines just like we ARE back in the 80''s again.
His verbal student take downs are class:
Student: "Doctor says I'm on the Spectrum"
Johnny: "I don't know what that is, but get off it Pronto alright!"
The way they kept feeding old cast members into the storyline. Fair play Netflix for backing the concept and not watering it down to some sentimental crap.