I purchased this unit to replace my older model after 5 years of great cooking.  I knew going in that the bluetooth was useless and didn't care, as it was not important to me.  However, I do expect the unit to work once its assembled and seasoned per directions.  Unfortunately for me, this was not the case.  I heated the unit as recommended, inserted a Pork Shoulder, added a chunk of wood, set the smoke level to 2, and prepared myself for a great pulled pork dinner.    An hour and a half later, I am seeing an error on the screen.  Says Err2  Unit won't reset no matter what I do, even after unplugging and allowing to cool for 2 hours.  If this is what we get from todays Masterbuilt,  I will likely look for a different manufacture in the future.