Compared to its predecessor

I ordered a new Hot Air Brush after my old after more than six years (and several heavy falls on the tiled floor) has given up the ghost so slowly.
My hair is very thin with an annoying nature wave / -krause. Since I have two left hands, I am absolutely incapable with hair dryer and round brush to handle at the same time and to arrive at an acceptable result. Even with the hot air brush is the result for me of course, not like the hairdresser or even close to the way it is shown in the promotional videos. But at least I can straighten your hair properly without the heat of a flat iron or suspend the hair hanging not quite as unmotivated, how would you do it after smoothing with a flat iron.
Since I buy the product for the second time, I am obviously pleased with the rationale. Here are a few comparisons with predecessor (1st generation):

+ The chunky power plug is finally gone
+ The device seems to be a whole become a little easier
+ Rotatable cable joint

- The new cold shot I personally find pointless, because it does not begin to cold
- I do not have control of the rotation speed, because the bristles of the brush are still so strong at the moment that they partially lay hands so deep in her hair that the engine hardly lean gives you to rotate the course does also according hurt.
- The arrow keys are a prime example of a Verschlechtbesserung: In the old device, the keys were smaller but had a much better tactile feedback. Now I have the keys partially suppress by force into the device, thus rotating the brush.
- The brush rotates only not connected with a hairdryer. It's annoying when you just want to unwrap the untwisted hair actually after cooling.
- The new inserting system for the brush is extremely heavy. Its predecessor, the heads could use without any effort now you would have to use force, before finally snaps everything.

Neutral:
The hotter Föhnstufe I had always wanted, because the drying thus is much faster. But the fact that the fan is too much, it's hard to wind up all the hair, resulting in at least for me means that I have to brush off some pretty nasty knot every few minutes.
Ion: The strong blower can be hard to tell when this function actually fulfills its purpose, because the hairs are indeed constantly weggewirbelt and stick out accordingly.

If I were not so incredibly incompetent in handling the hair dryer and round brush, then I would return the equipment. I try but still do not want to look as if I had lived a few months in the deepest jungle, I have no choice but to grapple me with this machine (I doubt that the opportunities offered by Babyliss or Remington alternatives in some way are better ).
In my opinion, Rowenta has much verschlimmbessert on a good instrument too much. For the device, as I bought it 6 years ago, I would it 5 stars for this one but three.