It’s very relaxing. Combat is an afterthought, crafting and resource gathering are easy, and the flight model is designed such that the average cat could probably navigate space quite easily. It’s a game about being in, and exploring, a vast universe - emphasis on vast. The comparison to Minecraft is quite apt, with much less combat and obviously many more worlds compared to Minecraft’s one.
It couldn’t ever be my main game for great stretches of time, but when I get the itch, my god I enjoy it. It’s one of those games where you always have a dozen each of short, medium and long term goals. And when you get fed up of your own creations there’s a universe of other players’ bases to explore within very easy reach.
I very highly recommend it.