The stainless steel has some definitely dark spots and blemishes on the one side.  No matter what I do I can't seem to get them off.  You can't see them from across the room, but they are definitely noticeable when you stand up close to the hood.  Also, the suction isn't as powerful as I had hoped it would be.  I'm not sure if it's a problem with the ventilation in the way it was installed or if it's the fan itself.  Love the looks, but I think it could be better crafted and designed overall.