I hope you can read english.... I don't speak italian.
I put your message through the language translater on google.
I assume you are refering to the 1D MkII, not the 1Ds MkII.
I know of very few problems with the 1D MkII.
Some have said that it isn't sharp enough. I know people who can get very sharp images with it.
The shutter button is very sensitive to pressure. It is very hard (impossible?) in continuous mode to get only 1 picture.
Other than that, I know of no problems.