I owned and destroyed (my bad) the Ninja grill/air fryer and had to get another one.  This one model with the knob in front, is SO MUCH nicer.  The improved no stick coating and new grill design makes is MUCH easier to clean.  The only Con from me is that the air fryer basket has sinking groves in it, I guess to collect oil.  Instead it collects my fries. Not good if I have something else with it that drips oil.  So I bought the half basket for fries.  Thank you for this much improved product.