Received and installed 8.0 last night. Here is my review, most of which has already been said.
First impressions are this UI looks really good. Didn't like the busy, space-wasting, fake chrome border style of v4.x->6.x, and v7 was kinda mismatched and unpolished. The blue color in night mode could be a less washed-out, less grey blue, and that would be easier to see, particularly for the Bluetooth connection indicator.
The expanded nav map on the top half looks good, and I think it is a nice use of screen real estate to let it expand. The auto-hide of the app bar should be eliminated however. They should just use the toggle mechanism to hide or expand at will. I couldn't find a way to display the list of Superchargers or destination chargers. Used to have it's own tab with the favorites screen. Don't like how chargers are displayed. Cannot seem to have visited chargers displayed without having the side bar up.
Switching between apps is bizarre. Some apps open in the bottom when clicked, others open in the top. This is nuts. Inconsistent, confusing and annoying. This is a serious UI fail. Doing the same action (clicking an app) should always produce the same result IMO. Why they bothered changing this basic behavior I cannot fathom. The work around I've started doing is just a long press on the app I want to open at the top. That opens the two pane drag option, and if you just release after it appears, it drops the window to the top.
Media player is a disaster for USB. Completely useless.
A media player should read the tags of your files and sort them appropriately. This is one of the core functions of a media player, and they eliminated it. I can only think of two functions a media player has to have: Play Media, and Sort Media. The Tesla player no longer sorts media in any useful fashion.
A good default would be:
Album Artist (In alpha order) -> Album (In alpha order) -> Tracks (In track order)
(v4.x-7.1 sorted by Artist (alpha order) -> Album (alpha order) -> Track (track order)
The Album Artist tag is better to use than Artist as it prevents albums with multiple artists from being split up.
Current choices are:
Artist (alpha order) -> All their Tracks (alpha order)
All Albums (alpha order) -> Tracks (alpha order)
It is now seemingly impossible to play an album in order. That is an unacceptable oversight. Sigh.
The new two column list is a let down. The original method of using the left column for the higher level, and the right column for the next sort was a pretty great design. It made a lot of sense, and displayed everything quickly and easily. You could quickly browse through albums or artists without going back and forth between screens, by just clicking each Album and watching the Tracks next to it change. Same with Artists and Albums. You could swipe left or right to go deeper or move back a level, and it remembered where you came from.
I want the original style back, it was a really effective way to browse the USB. Or they don't even have to have the two column system anymore, as long as the screens sort correctly and there is a back button to go up a level (that would be more screen switching but an acceptable downgrade for functional sorting).
Other misc/minor stuff:
-Removed ability to change media source through the right scroll wheel. Odd. Please bring it back.
-Right scroll wheel function choice text could be tightened up, the gaps between each choice are huge. Would look better closer together. It is nice the font is larger though, much easier to read.
-Persistent day/date is needed. Now that Nav hides the app icons, it also hides the Date (which was in the calendar app icon). There is plenty of room to add to the instrument cluster (where it was for years).