I don't have one but the people who do are quite pleased with them and they rate very well, "the best AGP card" has been stated quite a few times.
I think the performance using that card will probably be more dependant on the rest of your system, just make sure you have a decent power supply, that card draws a fair bit of power.
This is my current rig:
AMD Athlon 64Fx-60
ASUS A8V Deluxe Mobo
ATI X850 XT
Asus A8V Deluxe VIA K8T800 Pro Chipset ATX AMD MB
2 Gig of Patriot 3200 unbuffered Ram
2 Western Digital 74 Gig Raptors in Raid 0
DVD ASUS 16X DVD
CPU FAN Thermaltake Silentboost K8
Cooler Master Wave Master Case
BFG 650 Watt PSU
SB Audigy 2Z Platinum Sound Card
Dell Ultrasharp 2005FPW 20.1 Wide Flat Panel
I did notice that that vid card takes two molex power hookups.