Well the plot was entirely predictable if you've ever seen even a handful of different things in the past - Moon, Independence Day, Matrix, Fifth Element, even Wall:E, the list goes on...
The AI inverted pyramid was a bit reminiscent of GLaDOS!
However given all that it was still very well executed and better than say, Prometheus, even though the scope may have been smaller. Thoroughly enjoyable from start to finish. 8/10 for me.
Very different for TC as well - one of his better films I'd say.
I've been quoting the part with the swear word all day as we have someone in the office with that name

Best line in the film.
Edit: And lacking character development? IMO it didn't need it if you consider everything we were seeing/learning was from tech-49's perspective. Ok I feel there might have been a little too much left to speculation, however it is not detrimental to the film.