Other than paid for bias'ed write up. I have never known any type of gimmick plugs, be worth the cost. Good spiral core wires, plat-electrode and plat-ground. Is as good as a stock motor gets'. Most cost and power effective for 70k to 80k miles.
Only advantage with a performance coil-pack, is. maybe smoother idle, after the plugs and wires get, high milage. Once manufactors' went to DIS. The oem high voltage epoxy coils. Got better than, when they first got rid of oil-filled design, with mechanical distributors.
I bought a used sceamin-demon coil from a member. Never could tell a difference, and it craped out after 10months. I knew better. The lack of a decent price for it, no warranty, should have stoped me.(broke my own rule of, what to pay for used electrical). He did give me a good price for the, new PF pads though.