First, I have to admit that this was the first piece of apparel I've ever bought where fashion was a primary consideration. We bought 12 matching men's and women's green shirts for our Wasatch Back relay team. My wife has a 'vintage' wicked tee that she absolutely loves, so we wanted to stick with a winner. The contrasting panels are the same material, just a different color. So just for style.
OK, performance-wise, the shirt is perfect. It feels like you're not even wearing a shirt. The material wicks very well, and is very comfortable. I've run for 2+ hours in pretty warm conditions and never felt any chafing coming on. And the new runners on our team, the ones who've never run in a technical tee before, overcame the sticker shock and are now converts.
We'll see about the anti-microbial after 30 hours of running and driving during the relay. Hope it works.