The IP was the last thing I ever wanted, but I was gifted one Xmas '19, and immediately fell in love.
I think they call it "instant" because, like the slow cooker, it is very hands off. But, compared to the crock pot, it cooks in a relative instant. Because, otherwise, it's similar to conventional cooking times for many things. Good to know going in.
Rice comes out perfect. Pasta is so easy. I know- pasta is already the easiest thing to cook. But you don't have to wait for the water to boil, watch the pot, stir it, test it. Just dump it in, push the button, and be free cook the rest of your shit. Or let IP cook the whole dish for you. Cheeseburger pasta is the first thing I cooked in mine.
Stocks are excellent, it squeezes out every bit of flavor. Soups come out velvety. Even the easiest, most lazy soups made with canned goods are elevated.
Beans come out great, with no soaking, no planning way ahead. I didn't trust not soaking them, but haven't noticed any digestive problems. In my experience, soaking them makes them too mushy. Which is great, if that's what you're looking for. It makes a very smooth hummus, for example.
Making my own yogurt is a game changer. It saves a ton of money. You can strain it for Greek yogurt, and use the whey in a ton of things (bread is my favorite).
I like to just throw chicken breasts in when I'm too lazy to cook it another way. You can even put them in frozen. The resulting liquid is a very good broth.
Cons- all the fucking beeping. I don't mind the jingle when you remove and replace the lid. But when it's done cooking, it beeps, loudly, ten fucking times. It's excessive. You can turn the sound off, but sometimes I need to know when it's done. I wish it just beeped less.
The biggest drawback is the "foodburnfoodburnfoodburn" notice. When I look at recipes online, I read the comments. If even one person says they experienced the burn notice, I click away. But as I've gotten more experience, I've learned to tell if there is too little liquid/too much starch to cause problems.
And despite going BEEP X10 when done cooking, "food burn" gives you one tiny beep, "sorry, dinner is ruined."
I rarely use it as a slow cooker, but it is handy to saute things in the same pot, and have a timer.