A must have - especially for a busy cook.  I just made a meal that I normally do in the crock pot taking 6-8 hours to get a pot roast this tender.  For days I need the roast in a hurry this thing is the bomb!  Total cooking time from lid on to fall apart tender chuck roast with vegetables and potatoes perfectly cooked - 1 hr.  The meet still had a nice chew, read not mushy, but incredibly tender.  The meet and veggies were incredibly flavorful.