I think there is a lot of cool stuff in this game... BUT:
-Building is not great there should at least be a translate option considering how little the game care about placing things where you want.
-few parts (most components have 1-3 variant unless you get dlcs which are gonna be in your build menu to sell/annoy ig)
-parts are not versatile: You can't make a wing with frame blocks it just add weigth no lift, can't move paddle to move water you need the water propeller, can't make a submarine till you unlock the sub cockpit else no matter how many layers of frame you put around it you get ejected because "underwater seat" etc.
-Physics defying stuff like even if you go 100 km/h on a motorcycle you will fall to the side unless you have a gyro (ofc they give you seats and wheel early but they don't do anything till much later when you get the gyro... why is it not included in the motorcycle seat to make it legit ?) I think my character use dark magic or something to control some of the vehicules i made...
-Quite buggy often had to restart because floating blocks appear and chill near me, or sometimes stuff just break randomly and you have to rebuild or respawn.
-Saving is weird you just can't do it manually, does not save on quit, sometimes save after a quest... I just had to redo my last quest: i did it came back to village talked to the guy then quit, i come back and i still have to do it and im missing a lot of ressources.
-Can't change most controls: some parts control you can change but f is the key to press to exit vehicule (instant death in combat) also you need to hold f for 2 sec then while holding f press 1-2-3-4 to choose vehicule (like switching from the travel/mining you are on to combat vehicule when you get shot) That's just great nothing wrong at all here. (im kidding you can't even control wasd when you try to change vehicule and ofc sometime a super small misclick can oneshot you and it's such an easy fix like wtf)
Anyways it's a building game so it can be fun and the campaigns are well made even though there is a bit more grinding then i would like (mostly how long it takes to get started and have more than just frames wheels and one bad weapon)
So if you are not running yet maybe get it on sale.
GLHF