Yes and no. The game is great and improved A LOT (especially on the technical front) but the sheer amount of updates poured into NMS by Hello Games is on another level (and I write this as someone who didn't really cared about NMS).
If you're interested but wary about its state then it's definitely worth it - it's better and there's more of it than on launch. If you expect a completely different game however, you might end up disappointed.