I don't have the expertise to tell you whether or not the 350z LSD is compatible with other cars aside from the G35. Assuming that the 350z is a newer car and redesigned, than I would think that it would not be compatible with other late model nissans.
As for a review of when it is installed. Don't worry, I'll let you know how it makes out. I am still waiting for my driveshaftshop axles to come in and then I will be swapping out the rear.