The Good: Easily adjustable slack, ran fantastic while it did run.
The Bad: I bought this hub in April of this year (2014) around 2 months into riding it, the seal around the bearing popped off. That's not a huge deal but it is a pain to go through the steps of getting it replaced. Then, today (Sept 23, 2014), while riding around I heard a loud snap from my rear hub. As I went to pedal I could feel a ton of friction and seizing from the hub. A few hours later I had the hub apart and found that two of the small spacers had become completely distorted. I figured this was the cause of the seizing and difficulty in pedaling. I'm taking it to the shop tomorrow to see what can be done.
Overall, not a good experience. This hub lasted a mere 5 months. If anyone is wondering, yes, I had adjusted the slack on two occasions, after about a month of riding the hub. I had about 4 months of clean riding after the slack was changed so I don't believe this to be the cause. This is just one bad experience, and the hub did run really well for several months. So with that, I give it a 2.5. Depending on what the shop says I may alter my review to a more positive light.