I have beaten the game 3 and 3/4 times so far (i've had the game for seven days).
I also included a playthrough of the original in that timeframe.
I personally don't think it is as good as Bioshock 1. Bioshock 1 is so much deeper, and aside from the last couple of levels, was perfect.
Bioshock Infinite is vastly streamlined, and more high-octane (which is fine in small doses).
I am still incredibly happy with how it turned out though, wow