Super fast installation, so far only secured with rubber bands. The plastic handles of the gums are very strong and can thus also heavy burden (eg the train of the gums) withstand. My iPhone 5 is perfectly captured in the plastic Wanna which is very stable snapped to the holder!
In everyday life and sports super previously had lots of fun with. Have in addition a "Power Bank" (external battery), a small frame bag and a short charging cable buy. So I always have a Navi that may be in use all day (without the monitor must be switched off to save battery).