I did a shorter version of this ride a few years ago. It was definitely a smaller event, so it is a "show and go" rather than a mass start or one with road marshaling. I remember the course was moderately hilly, but not excruciating. It was well marked, very rural, and scenic. The roads weren't bad for Pennsylvania which, admittedly, sets the bar rather low (though no fault of the organizers). I'm just saying that AZ may have better roads, and these may be sub par compared to what you're used to.
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The rider in my avatar is David Etxebarria, not me.