I am currently driving a new Cascadia day cab 35K miles. The doors leak when it rains, every manner of dirt and grime seems to stick to the side windows, if the side window is open all the crap joins me in the truck, the windshield washer tank emptied out on it own once (weird), it stopped using DEF yet ran fine (again weird) dealer fixed, but the main deal is there is a vibration in the drive train at about 55 to 60 MPH when pulling even a slight hill. Only in 10th gear. It is a C13 and I pull heavy! Other than that it is a very comfortable truck. I am 6 feet tall. Plenty of leg room!