This was an interesting game. I got this one in a bundle at some point and decided to play it today. I will say this...the game is incredibly difficult. There is a good chance you will wander without any idea what the hell you are doing and may quit as a result. That is actually a knock on this game. There is no such thing as obvious, with a couple exceptions. The game doesnt teach you anything really, and you are left to your own devices to sort out what you are supposed to do and the proper order in which to do so.
So....use a guide. This is one game where a guide is almost a necessity. You may be the sort of person who can figure out a game like this, but most people who play this wont finish it without the help of a guide. However, if you do, it doesnt detract from the experience at all, and the experience is really what this game is all about. For all that puzzles are the biggest challenge in this game, the sense of exploration and the different scenery is what makes this game stand out. I didnt get the sense of an overall story except:
That this is maybe a galactic museum of sorts, or a museum at the end of the world, or something like that, and the last curator died, after which it fell into disrepair. You are basically fixing it and getting it up and running again.
So, points off for not being very accessible at all, but points in its favor for being pretty unique and uniquely challenging. Pus, that secret ending was pretty funny when taking the rest of the game into consideration.
All in all, a 3 out of 10 for lack of accessibility and the (IMO) necessity of using a guide, but 8 out of 10 for everything else. Try it out. See what you think of it. I think it is a relevant game that will capture your imagination.