I really like the Kenu Airframe+ as it's the only car mount I have found that works with my large Nexus 6P and the bumper around it. I tried other mounts that were magnetic and the adhesive wore out over time and larger mounts with a swivel arm with a dashboard suction cup that couldn't hold the weight of a large phone.
The Kenu Airframe+ vent mount on the back has a simple option for thick or thin air vents and fits perfectly into the vents on my 2017 Kia Sportage. I have driven with the Kenu Airframe+ for a few weeks and it doesn't bounce or shake at all when I turn corners or hit bumps in the road. The phone holder itself has a very solid grip on the phone and it keeps the phone securely in place. I also like the size and portability of the Kenu Airframe+ so I can carry it in my pocket if I need to use it on my desk or another flat surface.
My only serious complaint here is with the holder for the phone. I knocked it one star because of this. It is impossible for me to easily remove the phone from the Kenu Airframe+ with one hand. I have to remove the Kenu Airframe+ from the air vent, then pull back on the spring with both hands to remove my phone. When I get back into my car, I have to insert my phone back into the Kenu Airframe+ with both hands and put it back into the air vents. Over time, I can see where this repeated removing and inserting the mount into the air vents will either damage my vents or the Kenu Airframe+ rubber mounts on the back.
I wish there was a one-button feature that allowed me to easily insert or release my phone in the Kenu Airframe+, otherwise it's annoying having to struggle with the spring mount just to get my phone in and out of the Kenu Airframe+ Hopefully, there is a simple hack that would allow for this to happen. I really love the Kenu Airframe+ but it just needs to be more accessible with one hand.