Summary: Like anything else, components can be hit or miss even when you're talking about the most reputable of them.
Pros: Ran great for a while.
Cons: PSU is a little bit louder than the other fans in my system, but I can't tell whether it is actually loud or not - fans are primarily on my radiator. It might not be loud and just seems like it due to how quiet everything else is. Only real con was my PSU started having issues after using it for ...
Pros: Quiet. Blue led. I have a i7 4790k a msi z97 g55sli motherboard. A samsung evo 250 ssd. 1 tb sata 8 gb ddr3 gskill 2 msi gtx 970 4gd5t oc video cards in sli. Ive heard some people say that you need more than a 700w for 2 gtx 970s. Nope. This power supply works fine and it was a great price.
Summary: The only upside was that it was functional. I had two of them, both with the same problem. As soon as the gpu would go under load, the psu would make a (very) loud buzzing sound. I have heard coil whine before, but nothing like this.
Summary: I've had this particular PSU since July of 2012. I have not tried SLI, mostly because I'm a little leery since it was pretty cheap. Not saying it wouldn't work. Might end up replacing it in 6mos to a year. Just to be safe, but may not necessarily have to do that.
Pros: Easy installation. Plenty of wires(that I needed anyways). Blue light that matches my case lights. Works.
Pros: I built my own cpu using this psu in 2011, and it's still going strong not a single problem. I even bought this exact psu for my brothers cpu, and his is going without any problems for a year now. Its quite. It lights up blue. It's reliable. I definitely recommend this power supply.
Cons: Did not have all the connections ADVERTISED might wanna fix that cuz that was a real bad disappointment when it came in today under Features- connections Newegg states it has 6- 4pin Peripheral connections it only has 4 main reason y i bought this power supply