Very cool and quiet, much sturdier than my previous one.
584211
Just arrived yesterday and I've started using it already. Very cool, much sturdier than my previous one.
I've noticed the fan is a lot more powerful, but still quiet.
No complains for the price. Hope the fan lasts.
2889263
Love it.  Better than so many, less expensive and much cooler!
3169449
This fan is much quieter than the fan my processor was shipped with.  I like how I no longer hear a jet ready to take off...
The size is about the same as my old one, but the processor stays cooler, and I do not have to worry about the noise anymore.
Overall, this is a great fan at a great price.
596651
So far I am very happy with it. I was worried that the noise would be the problem. The fan is slightly noisy. I am going to get new fans for this cooler. However, the rgb is very cool. The software is very solid, no bugs so far. I am very satisfied with the purchase. However, the tubing is too thick so if you have small case then don't but it.
1918879
GREAT! Works fine and is perfectly quiet, unlike the previous one it replaced. The previous one was incredibley noisy, bothering workers in the room. Also this one uses much less power and produces less heat- the reason the former one was noisy was that it did produce (wasted) heat, requiring a fan, and the fan they chose to use in it was very stupidly noisy. This is a good unit.
1487385
The previous lap top cooler I owned worked really well and was rather expensive but it was LOUD. I couldn't stand it anymore so I decided to replace it. I was drawn to this one because of the price but also the reviews of how quiet it was. It cools just fine and is totally silent. Is it the greatest design ever? No. The blade IS exposed on the bottom, but that doesn't bother me since my laptop never leaves my desk. It doesn't cool as well as others I've had but all in all, it's a totally decent fan if you're on a budget.

Edit/Update: It's been 5 months since I've bought this and it's still working great and is still completely quiet. I honestly didn't expect it to last this long. I'm pleasantly surprised!
435428
Mounted and connected this a couple of weeks ago. I'm using it to cool a cabinet with a router, internet modem and phone modem. You can't tell it's running unless you put your hand up to the fan to feel the air, it's that quiet. The inside of the cabinet remains cool. I'm very happy with how this has turned out.
559761
Was super easy to install in place of my old fan.  Check YouTube for some videos on how to install them.  The old fan looked like a cheap computer fan and was only about 4 inches in diameter.  This fan is much larger and moves much more air.  On low or medium speed it is quiet and medium does move the air well.  High is a little noisy though.  I put a dog house over top to keep rain out so now I can run this even when it rains.
3402844
I replaced the 120mm "Shark's fin" fan that came with my Zalman Optima CNPS10X with this fan due to the old fan causing some noisy vibrations throughout the case. I can't believe how much quieter this fan is compared to the fan it replaced. It comes with 2 other connectors that will reduce the fan speeds and thereby reduce the fan noise but I think it is quite silent as it is. Also, it's got a 6 year warranty!
728848
So far this is great. I had one before this and it was really tiny and this one fits my 17" laptop great. It has the ability to be tilted forward which is great and makes it higher up. My laptop still gets a little hot when I run games (league) but I think that's just the nature of my laptop. It used to crash a lot before I got a cooling pad and now it hasn't shut down once. This one is bigger and keeps my laptop a little bit cooler. The lights are great and the fans are very quiet. There isn't a way to turn the lights off that I know of though if you're interested in that. The on off switch is also in the back which is slightly inconvenient if you want to turn it on or off but other than those two things no complaints. Very quiet and pretty and I love that it's big enough to fit my 17" laptop.
2809276
Very quiet.  Amazingly quiet!  Easy to install (according to electrician - I wouldn't do it on my own).  Looks very cool although it must be said it's a bit clunky looking.  It looks a bit like an airplane engine hanging from the ceiling (especially in the Brushed Nickel).  I have a small bedroom and low ceilings so chose it because it is a ceiling hugger and hangs down only 11" (one of the closest to the ceiling I could find).  So look at it carefully if you have a small room.  If the Concept 1 was a little shorter (it hangs down 12") I think I would have gotten that one - it's just smaller and sleeker.  But this one (Concept 2) is very cool-looking for sure.  I think it does move the air well (contrary to another reviewer's opinion).  Blades are not metal - they are plastic but really, truly, you can't tell just looking up at it, and this does not detract at all from its beauty.
4673247
My old power supply died prematurely, and this sounded like a good alternative. After a month, so far so good and I'm very happy with it. I have several internal hard drives, and the old supply didn't have enough connectors, but this one does. Also, it is extremely quiet! Better than any other I've had in that regard. Hardly know the computer is on. I don't know if i was maxing out the old supply (600 w) but this one should be more than enough.
2603806
I live in Florida, this is my personal fan. Enough said? But wait, there's more...I got this after returning a different manufacturer's fan that cost over 3 times as much. This one is quieter and better built. I think it looks better too. The internal and external power options make it very versatile. I've used it for about a year now both camping and around the house, and it's still going strong.
4566205
I really like the fact that it fits my 17" laptop and that it is very quiet. I like the ability to choose which fans are on the large one or the small ones. I wish I could choose the fans individually but the way it is, is ok. The lights on the cooling deck are nice at night with the house lights off. I also don't have to have the support stops pulled up to hold my laptop on the deck because it fits my laptop covering the entire base so the rubber cushions on the bottom of my computer hold tight to the deck. The extra USB plug on the cooling deck is handy allowing me to plug in another device like a vacuum or light for working late at night when my family is asleep. The angled slope of the deck is actually right at the perfect pitch for me, normally I have to change the way I sit or move the laptop so I can type. I finally found the perfect fit for my 17" laptop. I plan on ordering another 1 or 2 to keep as backups or for at work and for travel.
3708213
Much sturdier than my old one. It has a very solid feel and has many diff height positions you can use.
1667128
I was thrilled at how heavy and nice this fan is. It is all metal and looks like the old retro fans. It has four speeds and rotates so you can get a breeze or a cooling movement of a lot of air. It is extremely quiet even when used with the highest setting. I got my money's worth on this purchase.
2575000
Nice, sturdy, easy to clean; What's not to love? It does the job and looks good doing it. It's much sturdier than the last one I had.