The fixture itself is pretty cool.  It's quite bright and the color temperature of the light is pleasing.  It really needs a dimmer IMO.  
However, a couple of things made installation a pain. 1) As another reviewer noted, one of the hanger wires was tangled. It took a 14mm wrench and a Phillips screwdriver to disassemble the base and reroute it.  Not fatal, just annoying that QA was so obviously remiss. 2) There is no way to hang the base while you jockey with the wire nuts.  A little chain and hook would have helped immensely.  I used a small piece of wire and threaded it through the screw holes while I worked. 3) You really need to carefully set the hanging height before you put it up. As far as I could tell, you can only shorten the hanging wires: you can't pull them back if you shorten them too much. I didn't try using a lot of force, so maybe I'm wrong, but another reviewer also commented on this.