The GPSMAP 76CSx received rave reviews and 4.67 stars out of 5 at Gpsnow, a Garmin GPS navigation systems dealer site. "Recently I took it on a cross-country air flight, and could tell the speed of the plane, its elevation, the elevation to which the cabin was pressurized, and also what I was looking at out the window, and where I was," explains consumer Peter Colman.