Because:
Once you turn on the device !!! When you hear a high Fiepsen, a very high-traffic sound. You really get this plan headache. This is intolerable! I've heard that the problem probably comes from the Nvidia chip. But I do not know if that's true.
The high tone sounds like, like having a tinnitus!
Unfortunately, the laptop makes a good impression, but that will not do.
I still sometimes ordered a replacement. Maybe I'm lucky. Other Amazon customers complaining about the same issue in which same notebook (but with 128GB SSD),
Although the notebook would be great to be it's because of the unbearable fiepen not need to. That's why only one star!
Addendum of 14/05/2015
I have received a replacement unit! Also in this is the "Fiepsen" clearly heard! The device then immediately went on the same day back!
For 1000 Euros that's really unacceptable!
I have now decided to use the Lenovo Flex 2-14 and would highly recommend it to anyone! No disturbing noises and a very quiet fan!
I very much do without attention to the 360 ° feature! The Lenovo Flex can only rotate up to 300 °, but good enough for me too!