Great sound, replaced the onboard sound card. Logitech THX speakers with subwoofer.
Easy to set up, sounds wonderful, easy to tweak and adjust and now I'm not constantly turning the volume up and down on my pc based home entertainment center.
Worked out of the box with my Ubuntu 9.10 system. Sound is very clear with no background static. Microphone input is very clean. Just plugged it into an open USB port and settings for it showed up in the mixer. I use it primarily for a headset interface, so I can't make any claims towards the "7.1" channels. Very good performace for the price.
Pro's: Easy mounting to table or desk. Connection wires hidden inside Boom Arm
Excellent gaming sound card. If your motherboard doesn't have a high quality audio chip, this is a great option to improve audio for gaming and movie watching. Great software to control the card and more bells and whistles then you will probably ever need or use.