It looks better than it actually is

In positive, the object is beautiful and simple, no frills. It appears assembled materials are good, externally it seems to be good Logitech. The battery has a good battery and USB charging allows to continue to use the device that is really good. The scope is also good and the surface is a good size. That's a lot of good points, but as negative points concern the handling of the "mouse", down seriously hurt.

Indeed, the use is really disappointing:
- The feel to the touch is not great, the finger does not slide really well, I think it hangs ... maybe is this a question of skin? Still, it bothers me and it makes it difficult device, unpleasant to use, it lacks fluidity
- Certain actions work well when they want (previous / next in a browser, for example, sometimes works ... but sometimes I have to take me several times before it goes)
- Customization is limited ... I take the previous / next is 3 fingers ... if I want to change to do with 2 fingers, that's not possible, it is a pity (perhaps -this due to Windows?)
- Probably the worst, about 1 out of 3, the trackpad will start "deconfigures" (the direction of travel is no longer inverted way I want, right click stopped working [at all nor tap or by pressing the right], ...) and I'm forced to go into the configuration software to revalidate the parameters (without touching them, they appear as though I had left) to make it re-work as expected ... it is not much, but it irritates force
- Windows 8.1 gestures seem to have changed from Windows 8 ... the software does not take into account, it still shows the old gestures to the old shares ... perhaps that he will be corrected in a future version

I close with an advantage and a disadvantage at a time ... there was a lot of gestures activated in principle is good ... at the beginning I had all turned and there was a celebration every 3 me press the shutter manipulation gesture inadvertently ... or I'm not gifted, or I'm not really used to it, or it must make choices.