This is actually a 7-in-1 device that does the work of a pressure cooker, a yogurt maker, a rice cooker, a steamer, a warmer, a sauté machine and a slow cooker. Theoretically it is possible to cook an entire multi-course meal using this single device (although you'd have to clean it out between dishes). Moreover, it doesn't need to be constantly watched like a stove top does.
The best part about the Instant Pot Duo Plus is that it is small in size, and in price - it's on the lower end of the scale compared to many other similar cookers. Instant Pot also provides a number of recipes online, so that you can cook everything from rice to soup, curry to broth, stew, chili, and more. Additionally, it can keep food warm for more than 10 hours, so there's you can set it in the morning, go to work, and come home to a hot dinner.