I have been using the iOttie Easy One Touch 2 for more than two years and I am a very happy user of the product because it just works.
The mount is stable and is able to withstand the heat in Singapore. Despite being in the car for more than two years, the suction cup still holds on to the mount. And of course, it fits the iPhone 6/6s/7 Plus perfectly.
Previously, I am using the Just Mobile Xtand Go for my car but after changing to iPhone 6 Plus, the Xtand Go can no longer hold it and hence, I have to find an alternative.