I'm a guy - who normally wouldn't enter into a clothing specialty - fashion business. But following family and the name of the business .. I was curious and after initial sticker shock, I was impressed. Trendy clothing, but not over the top. Pricey, but I guess expected for "couture" (?) styles. Mostly womens (expected - be on the petite side, think Japanese women - very young women) but there was a small selection for men. I even purchased a few items (something I wouldn't do, no matter the "label"). I don't visit Seattle often, but Atsui Tokyo is on my schedule every time I do.
Pros: Service, service, service ... fashion ... ambience
Cons: Expensive (but warranted?), parking (but this is Seattle)