The inventory system is kind of a drag. Sure you can buy more inventory slots for your backpack or get a larger ship but crafted upgrades for your ship or for your character consume one of those inventory slots which seems kind of silly.
I spent a lot of time exploring one planet (think I collected around 20 translated words and got my backpack up to 18 slots) and you can easily see how the procedural generation is creating the points of interest. I need to see other planets in more depth but if the repeated nature of those points of interest are consistent through out, exploring is going to get old quickly. At least the ships and creature are interesting.
Everything in the game is procedurally created, having built one 'map'. It's not just generating those points of interest for you on the fly - they are always there.
There are lots of variations on ruins, monoliths and settlements BTW. Most of them are the same 'one room, one alien' outpost sorts of things but then out of nowhere you'll get a really creepy or different one and it becomes super exciting.