This is a great example of why there's no such thing as a completely intuitive interface, especially out of the gate. There is such a wide range of possible ex

This is a great example of why there's no such thing as a completely intuitive interface, especially out of the gate. There is such a wide range of possible experiences, contexts and willingness to learn/find out that people, your possible customers, have. The best way to attack it is iteratively, build in some metrics, A/B test, try as best you can to gather feedback, be helpful to those with problems, and try to understand their perspective and context so the interface can be refined in a meaningful way over time. User experience testing can go a long way, but a lot of things are not going to be evident until it's been field tested, especially since the people working on it have been staring at it for months (I'm thinking of the classic "Why do I select 'start' to shutdown the computer?" story, for which a link evades me at this moment). The best thing to do here is not be married to your design or flow and know that you're going to have to tweak or refactor it, and do so purposefully.