I am up for a challenge just like anyone else, but i play games to have fun not to be frustrated, Every 5 minutes i would find myself stuck and frustrated because i couldn't figure out where to go next or how to avoid certain enemies.
The game is also very slow paced and feels much longer than it is, The environment isn't much to look at and the visuals are subpar at best, It just feels dreaded to play.
Overall i have to agree with GameSpot, It is better than the other Alien games but it is still unpolished and unpleasant.