Mouse for cornea ...

My first impression was quite positive.
- Ergonomics is really succeeded (for my rather small hand).
- She has many (11) buttons, which can be (almost) occupy at will.
- The mouse wheel is great rasterized.
- The keys have a good tactile feedback and are not noisy.
- The weight can be adjusted (I personally find not soooo important).
- The laser is precise and can be adapted (DPI etc).
- The price is great for the functions.

Now to my criticisms, but who moved me to return the mouse:
- The fluted sides should probably generate grip, but produce in my hand only need the mouse again to put it down. After any hour using a totally unpleasant sensation has stopped with me, what I've noticed even at the Logitech G500s and there was a reason for me to return the mouse.
- The right front button is accessible to me not without contortions, so relatively useless.
- The upper 2 buttons in the form of a rocker switch (default DPI +/-) can be just as rather bad use.
- The lower left button is at first also funny to use, and I think you may have become accustomed quickly.
- Anyone who has ever used one of the new Logitech mouse wheel, for all other mouse wheels scrap ...
- Left-right scrolling the mouse wheel is not continuous ... That is if you want to scroll in Gimp in a picture to the right or left, you have to constantly click to the right or left.
- Macros can not really adjust nicely, eg you can not press cursor -> Press - Set> Release the mouse.
- The assignment of profiles can not link applications, or not change comfortably. It always has the mouse driver to be opened, clicked the profile, click OK, and then release the mouse still needs 3-4 seconds which was set during which they can no longer use.
- This color gimmick with the LED in the mouse back is totally unnecessary. If I use the mouse, you can not see the eh and when you see it once, it looks plus sch **** out MMN, so it would Sharkoon may waive (and should).

My conclusion is: Unfortunately I have to return them. I think the pluses outweigh any minuses except the first. I could make friends with all the negative points, except for the ribbed side surfaces, but because they make the mouse for me unusable, I have to send it back, unfortunately.