I find that the GorillaPod Basically, a good quality and an ingenious concept. Unfortunately, the spring is too strong in the Smartphone Holder (Regular) and bend the plastic frame from the mobile phone (Xperia Z3 Compact). The Regular size is for smartphones 54-72 mm width, my Xperia Z3 Compact has a width of 65 mm and is therefore perfectly in this limit. I'll send the GorillaPod back again, because I risk damaging the smartphones (frame, display, ...) is too large. Too bad about the product.
PS. In addition, the placement of Bedienknoepfe and the interaction with the terminal concept of Gorillapods is suboptimal. However, this is more of a problem on the part of Sony.