dhaas
Also feel free to reach out to us on gitter (https://gitter.im/unlimitedlabs/orchestra) if you're having trouble getting your local setup to run the workflow and we can talk through the details.
Your comment about embedding external QA workflows is super interesting. Right now Orchestra does support what we call 'Review Policies', which allow you to specify that a given workflow step be reviewed k times, or with probability X, or by specific expert Z. But it would be interesting to think of whole workflows for QA.
Re: getting started, yeah, we're working on a script--turns out cross-platform support is hard!
Research from the Flash teams project that I mentioned in another comment (http://stanfordhci.github.io/flash-teams/index.html) has shown that this type of automation can decrease end-to-end workflow time by as much as 2x!
On the research side of things, the flash teams work by Daniela Retelny at Stanford (http://stanfordhci.github.io/flash-teams/) has done great proof-of-concept things like build an app in a day with distributed teams.
Re: MTurk, there's nothing stopping you from stitching microtasks together with Orchestra, but I think that undersells Orchestra's strengths (e.g., collaboration among workers) a bit.