I suppose I should have listed the cons of PCI.
1) It's PCI -- so can be fussy about which slot you pick.
2) PCI also subject to resource issues -- so best to disable any ports you won't need in the BIOS before attempting install (Game/Midi, COM and Parallel Printer are likely candidates).
3) Follow makers install instructions exactly. Usually load driver before physcically installing.
Worth it usually, though.