Just installed a Kenwood ddx419 in my 2012 Focus s. I really hate this car but I have to spend 8-10 hours a day in it might as well enjoy a good system.
I also have a pair of Kenwood 3013 subs, 1000w Kenwood 8105d amp in the trunk. About to order 4 door speakers and a 4 channel amp, all Kenwood.
The unit sounds awesome sauce. I can control the eq for the front, rear, and sub. The frequencies for the front, rear, and sub. Time correction. You can match the lights to your dash. So many controls for everything. My only real complaints are start up time. It takes forever. Touch screen isn't the best, takes a little too much pressure. And the subwoofer level adjustment is a 5 step process instead of 1-2 steps like it should be.