Just bought the Bullets today and road them around a bit to verify the cleat setup is correct. Also have Shimano road shoes and had the Sidi Genius before that. I must say the Sidi has a stiffer sole and the heelcup is a much better fit. For womens cycling shoes, Sidi is a tough act to beat. Shimano is very good, don't get me wrong, and may in fact be a better choice if you have wide feet. I'm a B width and Sidi is a better fit on me. And you don't have to put a bag over you face to put them on as they are a much nicer looking shoe than the Shimano womens MTB shoes (which I find hideous IMO.) The only reason I have the Shimano road shoes is my Genius finally broke (very old, the original Genius, not the 2, 3, 4 or 5) and the LBS did not have Sidi road shoes in 38 or 38 1/2.
Tzvia- rollin' slow...
Specialized Ruby Expert/mens Bontrager Inform RXL
Specialized SWorks Safire/mens Bontrager Inform RL
Giant Anthem-W XT-XTR/mens Bontrager Inform RXL
Fuji Newest 3 commuter/mens Bontrager Inform RL
Novara E.T.A commuter/mens Bontrager Inform RL