I used to use Xoom but every six months when I'd go to do a transfer they'd need more security verification and it got tiresome. Although that was a few years ago, maybe it is better now.
Services like TransferWise and Xoom are great, provided both parties have access to good banking services. But, a lot of the remittances market is people working in a foreign country sending money back home to people who may well be unbanked. Some of the startups targeting that market, using bitcoin as the transfer layer, are pretty interesting.
