As Cars.com reviewer Kelsey Mays puts it, the Ford Flex has a few problems, but there are a number of good reasons to give it a look over other three-row crossovers. Throw in an EcoBoost engine, and you have a very good reason: The Flex EcoBoost can get up and go. But do you need that extra power? Mays explains in his review of the 2010 Ford Flex with EcoBoost.