its an upgrade for sure but for street driving, don't think you will notice any difference.
if you are on stock intake, get the new MST V3
if you already have the V2 MST, I don't think its worth it to spend the money on the upgrade
You're cleary happy with ECUTek, and it's an excellent option, I don't think anyone is denying that. you're not the target audience for the PTF kit since you already have a setup that works for you.
But, if you're going to comment on the PTF kit, I suggest doing a bit more research first...