I think although Richard is making a good point, it doesn't get around a larger one: the first impression point. Evan is likely to never hire this system, ever. Nor is Jim. Frankly, nor am I. The opinion of trusted colleagues carries weight.
For instance, when I was coming up on a show with an A-Line line array, none of my trusted colleagues had been on one. Since there was enough rig for the gig, I said I'd give it a go... never again. I had a horrible time with this rig. A friend of mine about two months later came across a proposal for someone to bring this rig for one of his shows. He called me, I told him my experience, and he hired another rig.
On the other side, a trusted friend can save a bad rig. It's just like my friend with the bad MICA experience. We actually talked about it on the phone again today and I told him not to write it off and promised him that MICA is a great rig. I had a ton of meyer boxes on a tour this summer where MICA was not the main box and it regularly showed the others up! It doesn't sound like any of Evan's trusted peers are gonna back this rig up, unfortunately.
And Drew: it wasn't Summerfest, although I was there this year. I was out on another tour and a good friend was mixing my band there on the same night on that dV rig. He said it sounded pretty good, but there just wasn't enough horsepower. Looking at the tech specs for that stage versus the others, I wonder if that's the one that got added at the last minute when everything else was out of the shop already!