Finished it, short but great. I start with cons as they are far less important: there are some typos, grammar errors (you´re not native English speaker), and as I mentioned, it's a bit short and quite easy (I played normal version, I guess easy version is just reading the novel). Also I see that you're more novel writer than programmer. I can image the game more polished from programmer's perspective.
Now pros (far out-weighting cons):
- great art
- great reading. Reminds me of reading hard-core sci-fi novels, when I was younger.
- I liked humor very much. Not f.cking around with it. 
- great value for everyone who knows a bit about current physics (relativity / quantum mechanics / a bit about particles)
- playing the game induced in me feelings of existential crisis. It happens to me every time when I think too much about Universe, entropy and inevitable end of everything. Big rip or vacuum decay are merciful, most gruesome for me is the thermal death of Universe.
In short: great hard-core sci-fi visual novel. I can recommend.