DEF System is garbage.
Truck is pretty dependable. The DEF system has cost me about $8k all together in cost repairs. Engine is good. Transmission rides a little rough and will probably need replacing at some point. It does good on long hauls and as a daily but would recommend sticking to gas unless you live somewhere where it’s legal to delete the DEF system all together. Than it would be an almost perfect truck. AC has had some isssues to.