There is a controller for heat, one for power and a controller that can be set to either cold air or even more performance, you have to use not this but. With the three controls you can influence performance and temperature very well.
From the handling ago the hair dryer is also very good. The weight is true, the size is also perfectly fine and the cable long enough (~ 165cm). In addition, there are two essays (volume and precision head).
The color is not for everyone, but that I can foresee, because true performance.
If the hair dryer a bit quieter (which is probably due to construction and performance does not go) I would give it 5 stars. It abideth with very good 4 stars with an upward trend.