Summary: Wasn't expensive, no troubles after four months of use. The only thing I wish it was capable of is hyper-threading, but that's not a minus since I knew when I bought it that it doesn't support it. Stock fan is quiet and quite capable of keeping the CPU cool, even under heavy load. I don't overclock, and I wouldn't recommend the stock fan if you intent to do any overclocking, but for everyday use, it's more than just fine.
Pros: I recently purchased this processor to put in a gaming build. It was $20 off at the time which put it in the same price range as some of the i3s and AMD FX83xxs, so I couldn't pass it up. The install process was very easy. I had no issues whatsoever. Now, for performance. This i5 has zero problems in games. It's currently paired with an AMD R9 280 video card, and this combo will destroy almost any game I throw at it. Every single game I've thrown at it can be run on U...
Cons: I got this on promo. At regular price the cpu is not as great of a deal as the AMD 8 cores that were on sale for insanely low prices on Memorial Day weekend. The FX 8320 was going for like $130. That's a steal. With Intel you're gonna pay more. The quality of product mostly makes up for the increased price, however. Also, I dislike the fact that Intel restricts some of the features on their cpus such as over clocking. It's cheap marketing tactics.
Summary: Great quality product, easy installation, and no problems yet! It arrived a day early, and Intel speaks for itself. It's a great processor. If you don't have the money to buy i7, don't worry, i5 is fine.
Pros: I got this processor because it seemed like a better deal than the other i5's I was looking at for my price range (less than $200). It came with a stock heat-sink and fan as well as the processor. This allowed me to save some money, for the time being, and keep the stock fan. I just wouldn't overclock it on the stock. I would also like to mention that I only have 1 fan in my case at the moment, and its still staying cool.
Cons: I haven't found any issues with the processor yet.