This arc has been full of great chapters. I remember everyone being skeptical of this arc at the beginning, especially since it's so different from any other arc, but it really developed its own voice. I never thought Kaiji would have a fashion chapter/subarc, but it somehow works.
Based on Mario's uncertainty, I'm guessing this will go poorly for Chang and Kaiji. Mario's usually shown to be the most naive member, and Chang seems to have adapted more to Kaiji's flow, but my guess is that the point will be that while Kaiji and Chang are better at insane gambling games, it has overridden their common sense and led them to created convoluted backstories for themselves, while Mario chooses the naive approach, which is better outside of convoluted gambles.