Yes I was a senior software engineer on the Ops Arch team, and a coworker of Chris Davis when he was at Orbitz, and both my team and the prod sysadmin/netops folks were the first users of it, anywhere in the world, debutting roughly with the Austin project, which was a big rewrite of the Orbitz/Cheaptickets codebase to support i18n & white label functionality. I can assure everybody it was used in production for a huge travel website at least as far back as the 2008 timeframe. And it stood up very well back then. I'd be surprised if it hasn't gotten even better since.