The goal of Syscoin is to integrate with major centralized marketplace and e-commerce platforms to help ease merchants transition from centralized marketplace solutions to decentralized, blockchain-based marketplaces with lower costs, better reliability and a much higher level of redundancy .........SEPTEMBER 12 ....be ready for ... https://medium.com/@BlockchainFoundry/blockmarket-desktop-release-date-d3a63acda1ed
Bitbay have had all this 18 months . . .
Apart from escrow as bitbay is decentralised so doesn't use 'middlemen' they have DDE and a seller rating and will be pegged to the dollar in winter to avoid price fluctuations.
It's not cool to advertise in someone else's thread...