Years ago we had one but it was too unpractical for the four of us, so we gave it away. Now that the kids are older and love making their own food - something I wholeheartedly support as they need to be able to cook healthy food once they are out in the world and fend for themselves - we got one again and it is used daily. It is PERFECT for making food for one/two - fries (healthier than deep-fried), bacon slices, chicken wings, grilled sandwiches, frozen mini lasagnas/pizzas for one - anything a student might want to cook in a hassle-free way.
I personally use it to roast pumpkin cubes, bake potatoes, grill fish... - in other words anytime I want to use the oven but feel using the big one is too expensive (electricity-wise) ...