I eat a lot of potatoes, as they are ridiculously cheap and filled with calories, and make a great boat for butter and cheese. But then, I'm young and very active. If you need to lose weight, or are worried about your cholesterol, I'd stay away from them. But they're great for athletes who need to get some extra carbs! But in general they're pretty frowned upon as they are very high on the GI. A potato is pretty much pure fast releasing carbs. So unless you're trying to build muscle or something, I wouldn't eat them.
Remember, you are unique just like everybody else.