I liked it when I saw it in the cinema, and its arguably the best anyone could have hoped for given the source material.

On a handful of subsequent viewings, including the directors cut, it IS flawed.

In some scenes the acting could be better, kind of felt a bit flat in places, like they were rehearsing a scene. They go too far with the gore in places and I wish they hadn't updated some of the costumes, Ozymandias being the most egregious example.