Pros: Its pretty
it looks great in a thermal take case
its nicely built
Has 6 output for fans
6 temperature gauges

Cons: The nobs are very sensitive, not temperature gauges are not very accurate and the instructions are not explanatory

Other Thoughts: If you are a prefectiontist the nobs will bother you somewhat because of sensitivity, the nobs that you can press to get different functions seem delicate but they are not. Don't let that reason make you think its not well built because if you notice the other nobs which you can't not press are quite sturdy. In my option nobs are well built and fancy.
With regards to the temperature gauges, I have always read that they are not very accurate and if you don't put in the corret place accuracy deteriorates even more. In my rig I only connected two: one for the CPU and the they for the VGA, the difference between what the fan controller temperature reads and the one from CAM (the program I run to check temps) its 3-4 degrees cooler, so not to bad , again I enjoy it.
Finally, instructions sucks, there is more information in the thermal take page specs than the instructions.
Conclusion ; if you aren't too much of a perfectionist get it ! I really like it ....

Pros: LED looks cool..6 channels..displays rpm and volts,and temp as well..

Cons: Plastic! feels cheap for a $50.00 controller..Very thin wires..

Other Thoughts: The controller works well..But the controls are very touchy..hard to set all fans to same rpm..if you touch it it could jump as much as 2volts..i have it for my 480 rad..