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
DVD+/-RW PLEXTOR|PX-712A
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.
Da Worfster