Amazing experience. I lived in Singapore for 4.5 years, and had many friends who were married to Asian wives. 

Couldn't speak to korean mother in law eg

Or family holidays in Japan with Japanese family who can't speak English etc

My old boss in particular, used to joke how his 2 sons spoke better Japanese than him by the time they were 4 years old

Yet even with the language barrier, they were all so happy, and made it work

Amazing part of the world to spend time