I hope the trend lasts a while! I was smitten by the style when I started seeing it on blogs in early spring, and I bought the Halogen Ghillie pair shown here (which are included in the NAS). I've worn the heck out of them this spring and summer so far. Almost every time I wear them, they get compliments. Just last week I was waiting in the music store where DS takes lessons. A (female) teacher walked by and said, "Those are the best shoes I've seen all day!"
They're surprisingly comfortable, although I wouldn't choose them for a hike. If you're considering getting a pair, I'd encourage you to go for it. They're a very fun shoe!