It's quicker to do things on the phone plus its mounted right where i want it. . The big screen is a pain to find music on spotify, enter locations into maps, respond to messages, make calls and so on. I also like to take videos with my phone when we are in cool places or offroad and like it at the ready. Bonus points you can take selfie videos with your phone when catching air or launching. Phone next to big screen is what i like.
Just need it to stop vibrating. I think its just the nature of the design. two little screws with zero dampening then attach a huge arm (lever) and attach super heavy phone, there will be vibration.