First, I was absolutely ecstatic that the shipment came 3 days earlier than the estimated shipping date. 
I was a bit skeptical when I got the box wondering how the tracking for lights fit into such a compact box. But...sure enough it did. 
It was pretty easy to install and they came out looking fantastic. I haven't gotten a chance to re-conform the tracks but they are a great ceiling fixture to tie the look that I'm going for in my living room. 
It doesn't come with lightbulbs but it does require special lightbulbs. They are the GU10 ones and you'll need 6 of them. 
It was such a great buy and I highly recommend if you're going for something more modern than the traditional ceiling fan/light fixture.