Haven't gotten to far into the game yet but:
-Building/crafting is wonky & convoluted and nothing like the original
-Inconsistent mouse cursor speeds between aiming/looking/inventory/options menu
-Game is still way too dark, darker than the original, Even with Gamma and Brightness boosted, my friends and I can't see anything at night/dark areas
-Things feel needlessly slow (pulling out things from inventory, swapping weapons, etc)
-Inventory is WAY too big. The original was great with everything in easily reachable areas on the screen, meanwhile now you have to slowly scroll your way to different areas of the inventory. I couldn't even SEE that sticks are now in the bottom left of the inventory because they were covered up/that far out of viewing distance

I'm hoping this gets better with time, as the original did, considering it's Early Access, but this long of a development time for Early Access that feels like 2 steps backwards from where they polished The Forest at is just annoying.