Disclaimer: As my title states, this is my very biased opinion, not a balanced review.

First of all, to add a little perspective, BioShock 1 (and 2 to a lesser degree) is one of my favourite games of all time - which is especially noteworthy when you consider that i'm not generally a FPS fan.

My overall impressions of BioShock Infinite...underwhelming. The gameplay was fine - nothing new - but perfectly serviceable. The visuals and art design were nice, but I didn't enjoy Columbia half as much as Rapture. The voice acting was as exceptional as it has been in previous games, Booker and Elizabeth were both nicely realised as characters, but I found some of the secondary characters were not as fleshed out as they could've been (e.g. Lady Comstock, Chen Lin. Daisy Fitzroy), certainly when compared to peripheral characters in the previous games.

I found the story quite a let down. The game goes to great lengths to flout themes of racism and social injustice, but never takes those ideas anywhere interesting, making it feel as though they were there merely for shock value. I found the plot convoluted to the point of being almost nonsensical, especially the last 20 minutes or so.

Final thoughts: BioShock Infinite is a good (not amazing), solid game taken on it's own merits. However, when held up against it's predecessors, particularly BioShock 1, I found it somewhat lacklustre in almost all departments. For me, certainly the weakest of the series so far.