@HighStream "
@coffeemilk It's a trade-off if the time they save is worth the space they take. I have a rice cooker. All it does is cook rice. I cook a fair amount of rice and I've never been able to cook it on the stove. I consider it a good investment of space for the effort it saves me."
Rice cookers can cook a lot more like oatmeal, grits, boil eggs (use a separate timer, make a small note for the future, and you'll need to manually shut it off or it'll over cook it), etc. Rice cooker is one of the cheapest most versatile devices for the kitchen, if you search you can find a few methods and recipes on how to take advantage of it.
If your model has a steaming extension you can steam other foods and use it to reheat leftovers. Combine it with a clean food can that'll fit from something you ate previously, using one of those side cutting can openers, don't close it completely shut just use it keep moisture out (this makes it into a small double boiler). With a steaming extension, you can reheat pastries, bread, and biscuit to give them that fresh baked texture and taste. It's not as a fast as a microwave but it's safer than an oven or stove top if you have one of those auto shutoff models.
I almost never cook things on the stove or bake things in the oven, I'm a gadget user. My usage preference is a microwave (major time saver: have tons of accessories like pasta maker, rice cooker, ramen/brownee, baking, etc ), steamer (my favorite method of cooking if I have the time), and rice cooker (Unfortunately my model never shuts off completely it shifts to warm mode, I have to unplug it to shut it off. I'm usually cooking a main dish and veggies in the other two device, this backs up the other two, I prefer cooking in this in this order) because I hate watching over a stove or oven preferring devices that shut off on their own. Really the main secret to cooking is search on recipe prep what you want to eat, see if someone used a method using your device of choice (rice cooker in this case), and some form of log (phone, tablet, computer, or old fashioned note it in a recipe book) to adjust the time to methodology and that rice cooker will impress you even more.