Aesthetically, there is nothing wrong, it is very beautiful, worthy of a hairdresser. It is very powerful with two variations of velocities and three levels of heat, the cold air being at hand. The removable grill at the back for cleaning accumulated dust is a good idea and easy to do. For cons, I have struggled to secure the ends of the hair dryer, either the concentrator or diffuser. We must go in strength and even for removing accessories or remove the removable part of the diffuser, all in the balance of power. Perhaps with the years of use it gets better, but for now it is not easy! I see no difference in the use of "turbo" or no key. This hair dryer is already very strong in the first speed. The cold affects the disadvantage for my taste of having to be held down (like the turbo matter). In terms of the emitted heat, it is very good and it feels the temperature rise following the 3 levels. However, energy economy, it is a difficult to verify argument. The ion generator function appears to be effective against frizz and prevents me from looking like a sheep. Babyliss has released a nice hair dryer worthy of a hairdresser, powerful, light despite its size, complete in functions and accessories. For me, the biggest black spot remains the assembly of these accessories precisely. I need quick to use, not want to fight or ask for help every time.