So I just got the Nina shoes I want to get from Zappos (I ordered them in black just to try them on to make sure the were comfortable and then I'm sending them back).
They are SOOOO comfortable and I can totally see myself keeping these on the whole day. I just did laps around my office wearing them and I can't say I was uncomfortable once.
So now I am going to be sending these back to Zappos and ordering mine on Ninashoes.com in yellow - can't wait to get them (I would really like to have them before I take everyone to see my dress and officially order!)