The 2011 Cadillac Escalade ESV is about 20 inches longer than the standard-length Escalade models, with most of its 14-inch-longer wheelbase going to legroom for the second and third rows, along with slightly easier access to the third row. There's a bit more cargo space behind that third row, too.
Just as in the rest of the Escalade lineup, the front (and second-row) seats are among the more comfortable and supportive we've found in a luxury SUV, while the third row remains a little difficult to access because of the big step up to get in—though the power-folding feature for the second row helps.
The rest of the driving experience—as well as the lavish interior appointments and long feature set—are basically the same as with the standard Escalade. The stout V-8 has gobs of torque, and Magnetic Ride Control reels in the body, allowing the Escalade to be whipped around with more composure than you'd ever expect from such a huge, massive vehicle. The only thing you should think about is that the added 20 inches of length might not fit in your garage so well, and it makes an already long, hard-to-park vehicle that much more difficult to maneuver.
See our full review of the 2011 Cadillac Escalade lineup for more details, pictures, and related news, along with highlights of what other sources said.