I also migrated from Japan. Factors contributed to my farewell to Japan
Institutional discrimination against foreigners
gloomy economy prospect
Small house
Identity crisis
What I like Australia
Job opportunity
Flexible workforce environment
Interpersonal realtionship
Open space
Beach
Transparent government system
What I dont like Australia
Medical system - expensive and low quality even you join private insurance
House - overinflated especially in Syd, Mel and Can.
Food - overpriced for eating out especailly in Can.
Shopping - low quality , expensive and less varities.