The display of the temperature ensures that the jet is exactly the right temperature at the time of use and avoids the risk of unnecessarily long heating and a fragile object with a temperature still being mounted (eg sélectronique component and sheath; filling wax wood pores airlock risk of burning the object).
The unit fits perfectly in vertical balance (back and front handle) which makes possible to focus on the object to be heated.
Comfortable in hand.
Seems reliable. Good evolution of similar model from the same brand, used for over ten years and still state.