Positives:
The cleaning performance is 1A, use the cloth with my Sony MultiFlip to the touch screen and to clean the case. Works great, typical microfiber ideal for fat / fingerprints etc.
Negatives:
The Mouse Pad function is for me Humbug -> You have to lie down on the ground the iSaver with the microfibre side down. This means (if you for example the way in which college café etc. uses) the dirt particles, etc. can accumulate in the fibers and it then either all fully lubricates the next time cleaning the display etc. again or even purely making scratches in the worst case! Although a good idea for me but not well thought out and thus risky.
But what really disappointed me: After the first machine wash (60 °) is the back of the cloth already broken. Even if I do not use the mouse function, but it looks ugly and sometime it might tear completely. The problem: The cloth came as balls from the machine. The "Mouse Pad" pages were stuck together. I then (very carefully) tried to fold the cloth apart again. The rear, however, was put in such a way glued together, that there were tears. Here are a couple pictures.
Sure, in the instructions is that Handwash permanently is gentler, but it's just released for machine wash at 60 ° and should be at least 5-10 washes survive and not equal to the first failure.
Because of the fit and cleaning performance there still nen Stern grace to the minimum to be therefore 2 von 5.