I've had it since August, and I like it. When I bought it, I was more interested in extra info about the battery than in the live display in front of me. However, having the information directly in front of me instead of off to the side has turned out to be very helpful. I appreciate having more obvious turn signal indicators, plus speed, speed limit, etc... front and center. I launch the app and put my phone there every time, even for very short trips. If I don't, I really miss it.
It's also nice to have the main screen show battery level in miles while the phone shows it in percentage. I've wanted both at the same time for a long time. It's also nice to have odometer data showing all the time.
Note: The guy in the video linked above complained about the magnetic mount not holding well. He put the metal disk INSIDE his case instead of outside. If you place it on the outside, it holds the phone solidly. It never moves.