 We've only owned the vehicle a couple of weeks so the rating on reliability is based on Toyota's reputation.  So far the SUV is great, except for a couple of things.  We didn't realize that the speedometer didn't have a digital readout.  Not really a big deal except we have had this on our vehicles for a long time so it will take a while to get use to not having it.  The reason we bought the Platinum edition was because we wanted front parking assist.  Our other vehicles have had this on them since 2012.  We rely on the front parking sensors a lot.  The sensors on the Highlander are WORTHLESS.  Our other vehicles systems will give you plenty of warning before you get too close to something.  The Highlanders sensors point out to the front corners and there are no sensors in the middle of the bumper so it doesn't pick up an object that is directly in front of the vehicle.  Plus they will not warn you until you are 2ft. from the object that is on the front corners.  Very disappointed