I would like to pile on also but consider the following for great steering performance:
     RTK GNSS for sub inch repeatability
     Probably a more robust gyro / accelerometers (50 hrz etc)
     Ruggedized monitor (although they might be overdone)
     Transducer / steering disengage issues
     Radios back to base station
     CAN games
     Some Algorithims are more robust than others

Over the long term though it all will probably become a commodity just like iron....calibrated and all right out of the box.....no training needed......

Arnie