I have one, and am looking to replace it. It's a good enough card, but it HATES anything with a Via 686B southbridge (so any mobo based upon an AMD761 set for a start); I've had to disable ACPI on my machine to get it to work in Windows 2000, and uninstall just about all the software, aside from the drivers, that Creative provided. As an aside, Creative now want you to pay to have updates shipped to you on CD, as opposed to making them available as downloads. Frankly, I think there's better cards out there; I'm looking at the Philips Acoustic Edge as a possible replacement, and I've also heard good things about the Turtle Beach Santa Cruz/Videologic SonicFury.
The card itself may be OK (outside the Via Southbridge issues), but the support and drivers/software really do need work. As always, this is only my opinion, and YMMV.
Nick