Thanks for your perspective, that is helpful. I also found this review:
http://www.ptc-investigation.com/pages/okpay.aspxP.S. I did also see a couple of reports online from people saying they got locked out of their merchant accounts after building up large balances... So maybe they are not trustworthy to hold large amounts.
All I can say about OKPAY is really OK! Like it, already using more than 2 years without any problem. Even they improved the support that was a little slow in the start.