I ordered one and it did not function properly.  I returned it and one was replaced promptly.  If you never cooked with a Pressure Cooker it is really the way to go. It works perfectly.  Love hearing the gentle rocking knowing dinner will be cooked quickly.  When you forget to put to put something in the Crock Pot it is nice to know that the pressure cooker is there to make sure the dinner gets on the table on time.  The Herb Chicken Recipe is my husband's favorite.