Haven't used it personally, but I've heard good things from people who've used it to move money around the online casinos.....carib offers western union swiftpay by the way, like a 5 dollar charge to send anythin up to $1000. good luck with whatever you choose.
A lot of poker sites uses this payment method, as well as a few sportsbooks like Intertops,VIP, and Intertops. They are a sister site of EcoCard they call QuickTender. Also some of the books above that are currently accepting this payment method are offering it on an e-mail invite only type basis.
Many casinos use this and I have good experiences with it. However, they only allow you to withdrawal by bank wire transfer and its pretty expensive, $20 to withdraw, and another $20 or so for the wire fee.
I no longer have anyone other than PayPal have direct access to my bank account (and I don't like them having it either but am forced to). Be careful, there are tons of scams out there.