It was good, but the end credits shouldn't have played scenes from Fury Road. Outside of that, it mostly tells a distinct story that happens to be set in the same universe. The movie stands better on its own.
Which may explain why we get the concept of the "First History Man" here as GM's way out of a studio mandate. Truth be told, the franchise has ALWAYS felt like tales handed down, mostly because 2 and 3 followed Joseph Campbell to a T.
I really liked that aspect and kinda wish all Mad Max movies had been framed that way. That would certainly explain why Max is a very different man in Fury Road. (Hardy played him as traumatized loner, while Gibson always managed to give him a wry sense of nihilist humour.)