Summary: Works as advertised. No issues, definitely gives me full control over my fans. Keeps my system cool when it's stressed and keeps it quiet during idle. Knobs do seem a bit fragile and I'm sure you could easily damage them if you applied a large force. However, with everyday use, it should be A-OK. Just don't have children playing around with them.
Summary: So far so good. Ideally you wouldn't want to stress the internals too hard by cranking down say a 2500rpm fan to lowest possible setting on the controller. Moderate use of the controls will provide longevity to the product.
Pros: - Black aluminum finish goes well with my Fractal Arc Mini case
Summary: I have owned two of these now for more than a year and they have worked well in several builds now. Read: I have plugged and unplugged these things with care and without failure many times. There is very little to fail on these units. There is no bright led to distract your eyes. No touch panels or readouts to fail. Low for silent surfing, high for gaming. There is a tendency for people to think that more complicated is better.
Pros: Simple, simple, simple. Does everything a fan controller should do.
Summary: Got this for my HTPC, which runs 2 80mm and 2 120mm fans. The two 80mm are on a single channel, and each 120mm has its' own. Luckily, i was able to mount it back a bit to allow my HTPC door to close, which still allowing access, but i guess that's a bonus to the case, and not this product. It'd be nice if there were clearly visible markings to tell you the knob positions, but that will e remedied with some silver marker and a template.
Pros: It works. Good feel to the knobs, High power tolerance.
Cons: hard to fit fingers to plug in fans and power, No OFF function., No marking for level.
Summary: What can I say, this fan controller does it's job and now I can chose at what speeds I want them to run at. The knobs do feel kind of cheap as if there about to fall off, but other then that it's pretty decent. It comes with lots of fan cables with enough length to get to the fans at the back of my HAF 922 case and the controller itself is fairly ascetically pleasing.
Pros: +controls fan speeds, +comes with cable extensions, +works