PTB - What's It Like?

How Is It?
I won't be playing the PTB anytime soon(TM) for personal reasons, but I am interested to hear your opinion. So, how is it? Good? Bad? So far I've heard a lot of good things, and the store looks amazing (seen from screenshots).
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Comments
I like how they cleaned up the menu/sub-menus.
For example, the white outlines around perks /addons/etc. are all thinner and it just makes the game look very slick.
How are you finding the pallet and their layout change?
I like it, but it says everyone is rank 1 when I play with/against them. Is this a glitch, or do rank 1 players like playing more than lower ranks?
Edit: Never mind, just read the known issues.