I love every aspect of this game. Gathering resources, building your base, unlocking tech tree, running around in your mechsuit and using its abilities, defending from hordes of wild alien animals, exploring new areas - everything is fun and you can alternate between those activities if you got bored of doing something for a while.
Game looks great visually, I love all those vibrant colors.
Story is not really important, but dialogues between main character and her AI are ok, I enjoyed them and voice acting as well.
Getting 100% achievements is relatively easy. There are no time-sinks or achievements that require high difficulties, I completed all of them in two playthroughs.
There weren't many technical issues after the release, game feels very polished, which is getting more and more rare in our age of unfinished releases.
You can play demo for free which is also great. I think you'll understand right away if this game is for you or not. After playing the demo I bought it instantly and didn't regret it at all.