Keeps bombproof vaulted on plastic surface

Despite some negative reviews, I bought myself the accessory, to mount it on the dashboard of a car and to fix the Sony HDR-AS100V it.
If the mounting surface is a smooth, slightly curved lid on top of the dashboard. If you read the manual carefully and the protective cover that protects the plastic plate from contamination when not in use, has removed the holder is firmly adhered to the surface.

I have the support of several weeks now in use and realize no reduction in adhesion. I therefore can not understand the negative reviews.

Of course mounted to the mount on surfaces that do not have the required flatness or their material condition precluding the adhesion of the plastic (silicone?), The adhesion effect will not occur in the required manner. For outdoor installation, eg on vertical surfaces, or in vibration-prone applications also caution certainly. However, the weight of the camera is so small that the moment of inertia of the camera can be neglected.

As a single objection I will still be that now, in the cold season, heating effects, may impair adhesion, could not be assessed.