These pressure cookers are always an excellent investment.  They help you make DELICIOUS, TENDER meals in a fraction of the time and retain the healthy nutrients of the food.  Just be forewarned not to put the rubber gasket inside the lid into the dishwasher.  Wash this item by hand to insure a LONG life and happy cooking.  Replacement is easy but why pay the price for it and shipping when it's life span can be extended for years by simply washing with soap and hot water.