Ask anyone 9 months ago whether or not trusting Mt. Gox was a good idea. They were the largest and most reliable exchange, and now it has become increasingly difficult to get your money out of it. And now the exchange rate on Mt. Gox itself has been effected by their problems...
I'll tell you what I did, I bought coins and transferred them out of there ASAP. The official line is that their bank will only do 10 outgoing USD wire transfers per day period. Of course limiting outgoing transfers is the same strategy you would want use if you were financially insolvent and wanted to forestall a run on the bank.
People who banked with Refco, another broker, are even less lucky. The fact Refco's CEO and chairman went to jail isn't helping them.