I have used Sidi products for over two decades bicycle shoes and motorcycle boots. They are fantastic products that I only buy and, cough cough, have bought other brands over the years, Shimano and Alpinestars among others. For me there is no going back. This is it.
This is my third Sidi triathlon shoe. I won't go to another shoe since I've found how well the Sidi shoe conforms to my feet. It is simply a very comfortable shoe while being stiff enough I get no pressure points/hot spots. I can't say much about the style of the upper, but that's not all that important to me.