Like many other reviewers mentioned, the installation is a pain.  The instructions are worthless and it could have been engineered so much better/differently.  I won't go into to the gory but there was definitely some confusion, reinstalling, swearing and one laughing attack whilst trying the hold the darn thing with all the crystals installed (HEAVY) in an isometric hold as my husband fiddled with it.  Be sure to drop down the screws with a washer through the holes in the canopy that eventually support the shade BEFORE you install it.  The actual crystal installation went smoothly.  I had my girls thread the crystals and I placed the strings onto the fixture when it was in place on the ceiling.  Once it was in place, my husband said it was one of the most beautiful light fixtures he has ever seen.  It really is but I gave it four stars because of the frustrating installation process.