Had this vehicle for about a month now. Love it so far. Got it for the 3 rows that seat 8. It can fit our family of 5 with no problem with the 3rd row folded down which leaves plenty of room for cargo for our trips. AWD Sienna only seats 4 without third row (captains chairs) and Highlander was a bit narrower, had less cargo room and was more expensive. Didn't take to the Sorento or Traverse - which were also more expensive for the same options.
Comfortable and rear seat room. Road noise less than I would have thought. Very smooth...
Speakers could be "crisper". Stereo not as good as my wife's Prius. EX should have Bluetooth and iPod integration - should not need Touring for this. Gas mileage could be better, but no worse than a AWD minivan.