The color of the rubber is not available in orange as in the photos, but the whole does not look as bad as feared.
The rubber is also at -5 ° C is still very stretchable, I could find no restrictions.
Edit: Today after about 3 months regular use today is the rubber part (connection between holder and bicycle handlebars, not the orange rubber for corners) easily demolished !!! Luckily my Nexus 4 has survived the fall! The holder is now completely useless.
Edit 2: The life of the rubber is limited - but I use the part actually several times a day. In most probably it keeps at least one year. I have 3 of them now and let replace completely if the rubber is broken again.