I've worn each of my new shoes at least once, and it's time for some first reactions.
The black Nine West pair:
The most comfortable of the three.
The blue Antonio Melani pair:
The buckles dig into the toes. But since I spend most of the day at a desk, not a big deal.
The black/white Guess pair:
Rubbed the back of my heels the little walking I did in them that day. I didn't end up with any blisters only because I didn't do that much walking.
So all in all, the Antonio Melani and Guess pairs need some breaking in. I'm hoping they'll become a little more comfortable after a few more wears. And even if they don't, it's not going to stop me from wearing them. They are so worth it.