To be honest, for an early access it's already extremely complete and well done.

+ An easy-to-learn crafting system.
+ A huge world to explore (even if we only have access to 1/4 of the map at the moment due to the early-access).
+ A well-designed housing system
+ A pretty cool combat feel (having mainly done hand-to-hand combat / tank).
+ Pretty nice graphics
+ Lots of interaction points (quests, resources, pnj to search for, crafting, etc.)
+ The wingsuit feel is great.
+ Simple and effective level and skill progression
+ Good talent tree (I don't know if it's the final one, but for now it looks interesting).

- Minor optimisation issues here and there, but nothing too serious to stop you playing (fps drop, shader loading, etc...)
- A few minor bugs: some weapon textures don't load or are simply missing, shields don't appear. Once again, nothing too annoying.
- Sometimes you get the impression that your inputs aren't being taken into account.


TLDR: Very good game, for RPG / Craft / Survival lovers, you'll love it.
Even better with more than one player.



EDIT : A lot of improvements and fixes with the update. Lots of new content and mechanics (cold, tar, etc.).
Lots of new items and stuff to find, revised talent tree.

Always better with multiple players.

Highly recommended.