This is my second Masterbuilt electric smoker.  The first on lasted about 4 years.  They start to rust and build up corrosion after time.  The new one came with a water pan, this helps catch most of the drippings from going all over the unit.  I also bought the  top broiler pan for doing wings.  There is a top burner as well as a lower burner.  Have not used the top one yet.  Make Jerkey with flank steak frequently. Also made ribs and chicken wings.