Moderate, but requires a significant long-term commitment. The standard pathway to PR is one of the longest among developed nations (10 years). However, a points-based system for highly skilled professionals offers a much faster alternative.
Japanese language proficiency (a high JLPT score) is the most critical factor, as it significantly boosts your points for the HSP visa and is essential for the job market. Securing a high-paying job in a technical field also greatly increases your HSP score and fast-tracks your PR eligibility.