Need a new slow cooker which I use a lot. Came across the instant pot in my research and am intrigued. It has a lot of fans. I don't know anything about pressure cookers. Do I need one in my life?? I will def use the slow cooker function and I do eat a lot of porridge ( saw it has a porridge setting) but is it worth it? I am worried I will end up with a v expensive slow cooker. Can someone explain to me in simple terms when is so good about a pressure cooker and how it will improve my life.