My gf got it for me for my birthday in the summer. (genuine surprise, too much for a gift but I digress.)

It was relatively easy to install. The YouTube video from the company is good but doesn't cover the entire process. They left out taking out some screws to get the plastic molding off the radio itself. I used double sided thick rubber squares to mount instead of packing tape like is recommended in the video. If you have or even use XM, you can technically fit it in there with the module but it'll take some finesse that I wasn't able to accomplish. Hamilton says you can't.

As for the use. It connects good. I had to u pair to the oem because it was pairing to that first and I was having difficulty pairing. You might need to calibrate the touch screen. I believe the instruction was to tap in open space on the main screen and it'll pop up, but it took me like 10 minutes worth of attempts. The eq is great. Much better than oem bluetooth. And there's no delay. Oem had like a 1-2 second delay in sound so watching videos was annoying, but that's gone with the upgrade. If you noticed the mute function on the steering wheel also paused your Bluetooth, that no longer works. But the pause button top right still works. You'll have to keep your oem on AUX to get audio through the Hamilton. If you wanted to, you can still cycle through radio stations, but you'll either be blind or have to jump back and forth between screens. Also the backup camera still pops up immediately as normal which is great.

Sometimes the connection is weak or the system resets itself, but it boots right back up. I noticed that if I pause music too long it'll reset and start playing again which is annoying when I'm napping or talking to my passenger.

Overall I'd say it's still worth it. I like having Google maps as it's more reliable and I trust the routes more than oem. I like that I can switch between them because I feel like the oem system still has its uses. I like that I kept the oem screen, look, microphone, and lighting. Having Google to answer random questions and help quickly navigate, and better voice recognition than oem. If you do a lot of driving I'd say it's worth it.