Brian T.wrote a review of Sidi Genius 5 Pro Carbon Shoe - Men's on February 4, 2013
Familiarity: I've used it once or twice and have initial impressions
If you have a volumous foot with high arch, do not buy. Even so, the tongue has little padding, millenium "carbon"is about as stiff as my specialized sports with a nylon sole I use for spinning and the insert is literally about 3 sheets of paper thick. Sidi makes good shoes but they won't give it to you for under 350 bucks. There are better shoes out there for this price point.