Within 1500 miles of driving off the lot, our Flex started making a high pitch sound out of the back of the car. It can be heard about 30 ft away and recently has grown loud enough to be heard within the car [if the radio is off]. When we took the car in to be fixed the dealer told us that it was the fuel pump. They called Ford and Ford told the dealer that the pump it is within the fuel pumps specs to make a high pitch whistle - so tough luck. As mentioned before, the whistle is growing louder, so maybe when our ears start to bleed Ford may change their mind, until then I tell everyone who asks how much we regret the purchase.
Interior space, comfortable seating.
Customer service. Seems like Ford had a space to get ahead with the other Big 2 in bankruptcy, but they have just left us shaking our heads. Also, the Sync feature is all but useless. Our family plays a game where we say an artists name that is on our ipod and guess/laugh on how bad the response is