Satisfactory sound level, personally I am sensitive to the slightest noise, the fan does not tear my eardrums.
Goodies: the thermostat, so the heating is switched off automatically when the temperature is reached and securing, when the camera switches ...
Cons: like any new device, the smell (not unpleasant) that emerges at startup, so can surprise ... Rather than a gradual ramp-up button, I would have preferred a write degrees temperatures (20 °, 21 °, etc ..), but it's a detail ...
In short, I recommend this product to purchase.