1) Cleat bolt holes vs slots limiting the cleat adjustment to just that of the cleat instead of using 'slots' to allow cleat to be placed in the correct position.
2) Cleat bolts located more forward which makes it impossible to get the cleat located correctly.
3) Narrowest last (sole) design so that many cyclists 1st and 5th metatarsals are not making contact with the sole of the shoe.
4) These issues are common for all Sidi shoes.