If you already have a pressure cooker which you are happy to use, and are content with making soups in a soup pot, are there any advantages to buying an Instant Pot?
1. No need to fiddle with getting the heat right to get to pressure, and then lower the heat. Just seal the lid and tell it to get to pressure. It will control the heating.
2. Timer. It will drop the heat once the timer runs out. A lot of people set something to cook for, say, 30 minutes. Then they go out of the house for an errand that takes over an hour. They don't need to worry about overcooking/explosions. It will turn the heat down after 30 minutes and keep the food warm.
That's really about it. I own both a stovetop one and an instant pot. Most of the raves I've seen for the instant pot apply equally well to other pressure cookers. Having said that, the two pros above are really, really nice. If people can afford it, I would tell them to buy this instead of a regular pressure cooker.
Thanks. I guess that's a no for me then. Point 1 is never an issue for me: turn the heat up to medium (or full, if you're in a hurry) until the pressure release "whistle" blows a couple of times, then turn it off. And while I never ever leave the house with the stove or oven left turned on, I guess I could see the convenience factor of point 2.