I'm an accomplished DIY-er and have put up many other fixtures....but this one is impossible.  Screws that should attach the fixture are too short for starters - but that's the easy fix.  The installation pieces actually won't fit; you can't attach the fixture to the mounting kit because the ceiling is in the way!  I'm still trying to figure some way to rig it so I can use....but right now I'm very disappointed.  There must be different installation pieces being sent out because this would be a simple installation if the kit actually fit.