Does anyone have any experience with using the Instant Pot and their thoughts about it versus using a regular pressure cooker or slow cooker? I have some friends that swear by it, but I resist buying too many kitchen gadgets unless I there is a clear purpose or function to owning one that I couldn't achieve using basic kitchen tools. The all-in-one functions seems nice, but does something that can do all those things actually do them well?..."jack of all trades...master of none."