Gps and a tractor trailer little shaky, but not enough to detract from the five stars given besides it’s, not like big trucks, are known for their smooth ride. Great product easy to refer to, while driving without looking away from the road for long very sturdy, holds either my phone or pad without swaying locks firmly into my cup holder. I purchased this for my 2017 honda accord because i’m a senior uber driver and wanted to use my ipad for directions. This just perfect is flexible and very secure. Perfect item works great pulls without making noise, but you can move it easily and fall Music. I use it for work constantly driving and never had any issues with it. It’S.