Often criticism was that all models would pull strip and thus caused no clean result. I had the first time, "but" it is definitely on the operation. There are 2 rubber lips at the top of the device. Only the top (those without teeth) to remove the window. So if you only loosely attaches the device to the upper lip at the window and then really sucks only with slight pressure, you do not have a stripe. So is a matter of feeling. That will not do anything at the corners, I was previously clear. Just briefly 1x with a microfiber cloth over it - done!
The battery I have now charged 1x. I've cleaned previously 5 large, 4 small windows & a patio door. All 2 times. There remain lit every 2 strips the battery indicator! As for battery life, so I'm not worried ...
In short: worth every penny! I would buy it again at any time.
