Cex is good exchange. Near christmas i get my credit card withrowal next day. Bank transfers arrives usually 1-2 weeks. Only few transaction could be solved slower because cex use mt-103 form to locate the problematic transactions and it's quite hard to get it from some bank. But these rules understandable.

I'm very satisfied with cex.io. Did lot transactions on their home page. They never stole money. They send withrowals back in time. Yeah they write that bank  payments time 1-3 days but they always make these in time. Few days ago i get my 5000 usd withrowal next day early morning. Also bank transfers works well 1-2 weeks. Their home page is very good easy use comfortable page very good for new users. Some people could have problems as in regular with banks too.
To tell the truth my bank hold my invested money 3 month before i can get it - and why because thay say that contract is allow them it. Why? They have much more workers. So i don't think that bitcoin exchanges like cex are slow. Lots of traders realize their profit last month also lots of people think today that it could be good investment and join.
So Cex.io is a trusted exchange with a conveniant page for those who wouod like to invest money.