How big is the freezer compared with the fridge?

The freezer is the smaller top compartment, roughly a quarter of the total volume. It holds a few frozen meals or an ice tray, not a full grocery run.

Does it need manual defrosting?

Yes. The freezer is not frost-free, so ice builds up over time and you have to defrost it by hand. Empty it and let the ice melt before it gets thick.

Will it fit under a desk or counter?

At 3.2 cu ft in a two-door layout it is a compact unit, but check the height against your desk or counter before buying. Two-door models are taller than single-door ones of the same volume.

Is it good for a dorm room?

Yes, it is a common dorm pick because it gives you a freezer as well as a fridge. Check your dorm's rules on appliance size and wattage first.

Mini fridges in this class are audible in a quiet bedroom, especially when the compressor kicks in. It is usually fine in a kitchen or office but noticeable at night in a small room.

Can it be used in a garage or unheated room?

Most mini fridges are designed for indoor room temperatures. In very cold or very hot spaces the compressor works harder and cooling suffers, so keep it in a normal indoor room.