This card is really great if you're looking to power higher impedance cans at a bargain price. Another really great thing about this is that it's microphone input is vastly superior to that of most onboard solutions. The drivers work well most of the time, but sometimes mess around during installation. Also, like most dedicated sound cards, it has a high output impedance so it might not be well suited for low impedance headphones or IEMs.
However, all in all, it's still a great card because it's so ******* cheap and gives you so much.