I saw today on x’mas eve in Apple store in Hong Kong. The standard glass one is definitely a better choice if you place it in the room where lighting is fixed and controlled. It just looks more vivid and sharper on the standard glass one. The image on nano texture looks a bit darker and scattered because of the matte texture. Matte is still matte. The Apple advisor told the matte will be good in studio where you have so many lightings from different directions, nano will be your choice.
I add a pic here which the left one is standard glass and the right is nano texture. The picture can’t really tell which better. It looks like even the right(nano) look brighter. However, this is not the case when you see yourself in person.
go for standard glass one if you will use it in your own room
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