We needed a car for 3 kids and two adults. I did a lot of reading into crash tests -- not just the stars ratings, but the detailed crash test reports. 1. This is about the safest vehicle on the market. Don't overlook that it's heavy -- crash tests are about running into a car your size. Running into a heavier car is like a higher speed collision (to the lighter car). 2. Some complaints around the web are about MPG. There's no alternative noticeably better in this weight class/size. Most are worse. 3. Another con often mentioned is price. Flexes are quite reasonable right now. Ours was 22% below MSRP (after 3K rebate), and just under 6% below invoice, with virtually no haggling.
Safety; really quiet inside (there's a zen-like tranquility driving, at least without kids aboard); reasonably responsive; affordable. Doesn't look, sound, or drive like a minivan. My wife thinks it rides better than our 2004 XC70. USB drive music in and car diagnostic info out, via Sync.
Our Volvo has a folding key. They're actually handy. The Flex doesn't. Laminated front glass standard on all models would be nice.