We are a family of 4 w/ an SR5 w/ 3rd row and absolutely love it. We only use the 3rd row infrequently (approx. 8-10 times / year for short/30-45 min trips), but when we do use it, we are glad that we have that feature. My kids fit fine in the back seat, and my wife and I can comfortably sit back there, although we are both shorter adults (5'6" and 5'3"). I wouldn't select this vehicle if I was planning on using the 3rd row more frequently than this or for longer trips or if I was taller than say 5'8"-10", in which case I would have looked at a Yukon, Sequoia, or Armada. When it's not in use, it folds flat in the back and I don't think it takes up that much of the cargo room as compared to an SR5 w/o the 3rd row (maybe a few inches higher in back). Still have plenty of room for vacations/trips with the family and all of our gear and have the ability to take along a few extra folks when needed. If you are looking for a rugged 4WD SUV capable of real off-road use, with available 3rd row seating, that can tow a 5000 lbs., then the 4Runner is probably the best in class option, IMHO. Beleive me, I looked at just about every available vehicle on the market that fits this description and once I saw and test drove my 4Runner, my search was done!