Congrats on your upgrade. My front infinity speakers shipped from amazon yesterday. Can't get over the price as its more than half the cost of store prices. The best deal on the internet.
Here's some tips for you, assuming you haven't installed them yet:
The fronts, turn the Tweeter switch from +3 to 0. It's a little too bright. The backs seem to be okay with +3, which is how mine were shipped, even though the manual says the default is 0.
Also, get yourself some foam tape and cover some of the factory cabling for window switches etc with it to cushion them so they don't rattle from the power of these speakers when you are doing your front door installs and have the panel off.