Interesting.
I tried with CurrencyFair the other day and was not able to transfer to Bitstamp, but in fairness they were very apologetic when I spoke to them about it and it's clear it's definitely not their fault or something they have control over.
Will give OKPAY a try now.
I used to use currency fair to transfer to bitstamp also, but they like transfer wise stopped this in the summer.
Currency fair IMHO are an excellent outfit and like everyone else in the UK are dictated to by the banks on these matters.
I'm pleased that OKPAY withdrawals are back on the table. I nearly purchased some more anonymous polish (EURO) visa cards lol
But I like the security of someone to moan at if it goes wrong. I had opened a payeer account but could not bring myself to use it as it felt dodgy.