Note: Tired, depressed(and amused) after streaming the game for four hours so excuse any grammatical errors and such.
Streamed/played it for a quite a while and what a disappointment. The graphics, textures in particular, truly are poor beyond belief and animations often seem missing or non-existent. The alien gibs are rather lazy, they just splat into identical pieces of heart and liver. The interior environments are bizarrely basic in design, like a modern Doom almost with textures along the same base of quality lining desks and computer screens.
The lighting system in particular stands out as something that must have been uncompleted or toned down of the course of development. There are sections with hanging bulbs that can be interacted with and produce dynamic lighting on the fly and its actually really impressive. Most of the time however these things don't exist, only unbreakable room lights. Do like how firing your gun actually illuminates the environment though.
One huge issue however, and one that stands out above all of the other graphical issues is the bizarre haze that surrounds almost all of the environments. Draw distance is seemingly only a few feet in front of the character at times, with everything else being a blue sludge. Absurd amounts of banding are present around many light sources and just textures in general.
Mission 2 was beyond boring and was just a mindless sludge through wave after wave of human opponents with a seemingly random chance of reacting to bullets. Two encounters against a heavy shotgun trooper stand out in particular as mind numbing, forcing you to wait by a door and pop out every now and again for just a few shots. There is no real satisfaction to be hand out of this given the poor animations and hit reactions. And while I think it's often a lazy comparison and something I work to avoid using whenever possible, the next mission was a poor man's CoD level, complete with shaky environments and waiting by the doors for your squad mate to stop being useless.
The stealth mission isn't really interesting and only stands as a further example of how awful the game is. The enemy in question is poorly explained in terms of its metamorphosis and the method of dealing with them hilariously gamey and contrived. Switch time! Will say the art design was actually quite nice there, with lightning used to good effect. Kind of hard to be particularly frightened by the creatures when their walk makes one think of a exaggerated silent comedy waddle.
Not to mention the story which is just terrible in every possible way. Bad acting, poor dialogue and characters(Oh damn, O Neal!) and rough segways into each subsequent mission. The cutscenes also look really bad in terms of animation quality, not to mention the expected compression.
Despite all of this or exactly because of it me and my friend were still able to have some degree of fun. Mostly making fun of the terrible aspects and laughing at the ability to bling up your guns.
Multiplayer seems like it could be a lot of fun though, the few rounds I played of Escape were really tense and the objectives while repetitive within the context of each mode, kept things refreshing. Not entirely sure how to use each alien's special V ability though, will have to look into it before I play next.
But yeah, in conclusion this really is as a poor as most people are saying and how much enjoyment you get out of it depends on your ability to laugh about such aspects. I've been able to some degree do this but as someone whose been looking forward to this game for years it still hurts.
Edit: Two other important things I forgot to mention.
The lack of a hud in ultimate bad ass mode is quite nice and honestly the game is so much worse and cluttered with it on. The game is quite easy on ultimate badass so frankly I think it's the only way to play. And acid blood does damage you but its effects seem to be very random, and always minor.
The other point I forgot to mention is that the decision to let you stock all of you guns at once is absurd and makes it so you are never truly in danger. Hundreds of shotgun shells, dozens of explosives, etc. No threat.