Same.
On a JP server and will never move anywhere else.
I enjoy playing with Japanese although they tend not to chat much during dungeons.
It's fast and polite, say hello, say goodbye and we part ways without having talked much.
Also the fighting style is always very "structured". I have literally never seen a tank not marking nor a BLM/WHM not sleeping mobs, I think not once.
I found runs very smooth.

and yeah, I also put all languages in DF and 90% of my parties are JP parties.