I don't have experience with these either but obviously the tow bar itself isn't going to be strong enough and you don't want to attach it to the bumper.
If it was me, I would get one of these
Its a "tow plate" from www.tomken.com
for under $100. Oddly this one with a 2" receiver is cheaper than the one without the receiver??? Anyways you need something like this that ties into both frame rails. Then somehow attach the tow bar to it. Tomken also has tow bars and brackets but state the brackets can be attached to any "stout" bumper, which the stock one is not.