From the start, I hadn't checked much reviews from the product: a friend of mine had bought the product, he was pleased with it so I bought just the same product.
I bought it for gaming purpose, not for content creation, so I will not comment on this since I have no knowledge of it. Also, I only used it with headphones, Astro A40 with MixAMP.
With normal 3.5mm headphone jack, the card is flawless and gives good results. Nothing to complain about.
When I hooked the new headphones (the Astro) using a optical out, I've started having problems with the card: whenever there was no sound, as in no media playing, there is a clicking noise (about 100 clicks a minute) comming out of the optical out. I've changed cables, headphones, drivers, etc, but the noise kept going. After searching the net, I found I wasn't the only one having the problem. The only known solution is to put the card into "Musical Creation" mode for the noise to stop. You can always change the mode to gaming or something else before starting your game, but I can hardly believe a company in the sound industry for so many years cannot fix the problem with their drivers.
So that's it: product is great, apart from that very annoying clicking sound comming from the optical out in all modes but "Musical Creation".