Yeah I've ridden quite a bit. Not much shake. I think its pretty negligible. The device is firmly place in there so it shakes at the same levels that the rest of the bike shakes.
I am 6 foot 1. If I slouch its a little in my line of sight but I consider its a good thing because I consider slouching a bad habit of mine.
I have not tried Sirius XM. TBH, I didn't know our bikes had it. The wonder wheel works great with the device.
It takes a minute for android auto to get started but when it does start if you go to the music menu on the TFT the music will start automatically rather than having to hit play. Which I guess is one less step to do. You still got use the button to move down the to the music menu.
The maps were a little bright so i switched to it to night mode. It was in automatic mode already but I don't think it has a sensor to see day or night outside because it was pretty dark out already and the maps where still in daylight mode. I prefer night mode anyways.
I have android by the way