Agreed completely. I'm sure Scorsese was inspired in part by this film, as well as Fellini's other work. And considering Scorsese has one of the harder edges in regards to recent directors, Fellini's edge was even sharper for the time.
Agreed. I love the style of the film, the visuals, Mastroianni is brilliant as always, but it's the construction of the film, both in how its paced and how it builds its own atmosphere, that stands out as particularly incredible and, like you said, ambitious.