I've had my Flex 5 mo. and it has 4,600 mi on it. I've had nothing but problems from day one. It's been in the shop 3xs. The speakers do Morse code, the dash board squeaks but most importantly, the transmission slips around 3xs a week. I've taken it to 2 dealerships and so far they can't duplicate the issues. The turning radius is horrible! I have to do a lot of 3 points when back out of parking spots. The gas mileage stays at 17 mi/hr no matter if I'm driving fwys or streets. It did not get better after the "break in" period. There is no access to the 3rd row with 2 car seats. I have to have passengers crawl in from the back. I plan on contacting a lawyer.
The ONLY thing I like about the Flex is that it looks "cool" and has a good safety rating.
Better turning radius, no cross interference with speakers from cell phones, better gas mileage.