We've had our IP since 2016, so you can't even get it any more. But we have the Lux 6-in-1 : 6 Quart Instant Pot for our family of 5 (you know their ages--they are older and eat!)
As far as must have recipes, I recommend the
Instant Pot Community on Facebook as they have a vast knowledge of recipes and individuals who can help you convert a stove/oven recipe in to an IP recipe!