It’s simply not on par with Band of Brothers, mainly because the storytelling approach differs significantly. The narrative jumps around instead of centering on one unit, and that prevents it from delivering what viewers anticipate. Essentially, people were hoping for a Band of Brothers experience set in the Pacific, but without a consistent group to follow throughout the conflict, the feeling of camaraderie that defined Band of Brothers is missing. That said, the series effectively conveys the sheer brutality of the fighting, arguably more so than depictions of the European front. This aspect has also drawn criticism; some viewers perceived it as exploitative violence when, in reality, the Pacific campaign was characterized by unrelenting carnage. Ultimately, it’s a production that's been unfairly judged—a distant relative to something much celebrated.

Source on TMDB