This whole steel question is actually getting old.
Much of the need for any specific steel, is driven by the marketing from knife manufatureres.
Take 440C for instance. Once a reputable steel, which ended up getting a bad name. And it got the bad name, because "the internet said so".
Fortunately it seems, that more and more are coming back to theunderstanding, that 440C is just fine as a knifesteel.
Same with AUS8. The internet says it is bad, so it must be bad...?
Some believe that people are foolish for paying 130$ for an APO1 is AUS8.
But who is the bigger fool? The APO1 buyer, or the one paying 425$ for a Spartan Harsey Difensa? The Spartan knife is not 3 1/2 times better.
The best clue to the APO1 being priced right, is the fact that it is sold out. And there is a demand for more.
I am not saying that 3V (or many other great steeltypes) does not perform better than AUS8. But that does not mean that an AUS8 knife can't be a good choice.
It certainly does seem to perform better than the Fällkniven S1, for the intended use of the APO1.