When the first one came out I was disappointed because I wanted more System Shock 2. However if you go into it without sky high expectations they are very atmospheric games. The world alone is worth seeing.
None if them are 9/10 as reviewers would have you beleive, but they are enjoyable experiences and cool to immerse yourself in.
Your opinion is invalid.
Infinite is close to 10/10 (but not quite)
Bioshock : 8/10
Bioshock 2 : 7/10 (almost gave it up a couple of times lel)