I'm glad that we finally have Native American Civ. It is a large gap, and I'm glad it is getting filled. Now we need Inca Empire to get a South America.
Poundmaker's depiction looks interesting, but I'm afraid that his LUA doesn't. Which, on the other hand, can't be said for UA of the Cree. I like the idea of your cities getting tiles just by sending trade routes. It's going to be fun to get some free tiles when I'll settle a new city and will send a trade route to bigger cities for some production.
I also like that UU and UI. And their palace.
About their music... Well... I'm afraid I'm not going to listen to it as much as Mongolian, Korean or Dutch themes