Depends on your tastebuds and tastebuds adapt. If you normally eat rich, sweet or salty food, oatmeal can taste plain.
Buying jumbo oats (as opposed to that powdered instant stuff) makes a huge difference in terms of texture. It can be creamy if you cook it with milk, salty if you add salt or sweet if you sweeten it. Added nuts can give it a rougher texture.
I'm a big fan of oatmeal and like it cooked with water and served with fruit & nuts. Yesterday I had it with stewed banana, blueberries & chopped pecan nuts. It's also awesome when baked in the oven, blended in smoothies, as a base for cakes or a topping for crumble.
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