I've changed my mind about this place - it's improved a lot over time.
I visited when they first opened and found the inventory pretty ho-hum - mostly 80s kitsch. I didn't go back until a year later when I was killing time in the area and stopped in. Their inventory had improved significantly - more more diverse, and with much less emphasis on "ironic"/tacky stuff. The prices are very reasonable. And I'll echo what several others have said - the shoe collection is really impressive! Huge assortment, in good shape, in a variety of sizes (i.e. not just ultra-narrow).
I left with two nice 50s/60s button down shirts and two pairs of shoes.
I still miss Epoch, but Good Style deserves good business!