Working fine? How fine? How many hours or days?

If it have worked fine without any true withdraw or deposit problem say example 1 year. Then can say "working fine".
Of course some times may need short time system services etc but if your coins are weeks or months there locked (or loosed) this is not acceptable at all. If fiat money system some do this he is soon in jail.

My experience from quite long time period with Bter is that this service is total crap.  Unbelievable random lottery when you can withdraw or  deposit.

Yesterday, some deposit tested and works.
Today, deposit did not work. Deposit address get YAC ok. But not updated to account balance. Are these test coins now there 1 day or 5 months - who knows. And if look Bter, they may think - who cares and so what.