The 8 qt. Presto Pressure Cooker is reliable and easy to use as any product of its type.  Presto has been making these for decades and they definitely know how to do it right.  My first meal was vegetable beef soup and it came out great in less than 45 minutes.  Next Spare ribs, unlreal and tasty.  I have had a pressure cooker for years and got rid of my self contained model for this stove top design.  I feel it allows me more control and versatility.  I like it.