Something I don't remember seeing warnings about - they've made some little tweaks to the default UI appearance. Some icons and such have been changed a little.

The Game Menu bar is... cuter?

I always thought the defaiut button bar at the bottom was kinda ugly.

That's why I have always used addons and replaced everything. I like a really clean interface, I do not need fancy borders with "pretty" decorations.

What I basically mimicked was the keyboard layout. So I had 4 to 5 rows of buttons basically showing me what's on which key.

But some stuiff I just map the same in ALL games. Like AOEs of any kind are always on c,v,b,n... a charge/jump forward always on q. A jump or attack where you need to target an area after click always on T.

Stun+Interrupt always on E and R.

And the (combo)actions from left to right on 1 to 8. 0 always an emergency heal.

Prebuff (if any) before a charge/jump always on ^

I've rarely keymapped anything myself - never picked up the habit, was never taught. You've got a pretty cool system there!

Yah that helps to remember shit despite which game you are playing. WoW or SW:TOR or whatever. Only GuildWars 2 doesn't comply with that cause they think 2 really short fixed bars you have to switch every few seconds is a good thing.