Wildfang's shirts (I have three) are made of the crispest cotton. Unlike lower-quality cottons or knits (like t-shirts), they don't stick to your skin in the heat of summer. Also, because of their patterning, they camouflage grandbaby schmutz. (Yeah, I'm not Wildfang's target market.)
I'm 5'10" so appreciate that the shirts run longer than typical button-downs for women, but wouldn't mind another inch or so.
When I ordered my first button up, I assumed Wildfang products would be on the roomy side. They're not, so take that into consideration when ordering.