Design and feel I find totally fine, the mouse is nice and flat and does not take up much space in your pocket, but is large enough (in length & width) order pleasant to work - at least for my claims. Here we are already talking about the keyword: work ... Essentially, the mouse does what it should, but I need to frequently re-connect until you at my Win8.1 tablet works / responding again. If I have the mouse does not move for several minutes, and then they need, it does not always respond immediately - sometimes I stir only so 10-20 seconds on the desk around to respond to it then condescended ... This annoys me already , Like I had is installed with my Thinkpad notebook on Win7.
At first I thought that I might live (value; You get what you pay fo ...), but then it just lasted a few minutes, so I now but have decided to make the return request. We'll see what follows ...
As a backup or only occasional work with a mouse maybe ok overall for my needs but unfortunately too many Zickerei ...