Just installed mine yesterday, absolutely no problems with the install from the instructions. Just had to get a little creative with the mounting for the HID related hardware. I'm very satisfied with the results.
Even with no projectors in the fog light housings the cut off line is very clear, only some minor glare you can notice when you get really close to a wall. But that'll be fixed eventually with mini projectors. Only strange thing I noticed was with the HIDs, you have to flip the polarity of the red power plug by flipping the switch 180* (but I think that's normal to have to do that?) excuse the dirty car..it needs a bath.