There is some intense hatred for High-Rise, which I think comes from people expecting something very different to what they found. So I'm going to try and tell you what to expect without any spoilers.
A lot of people will find this movie hard to relate to because it has anti-heroes and is driven by concept rather than character - its pacing is guided more by the ideas it wishes you to consider than the emotions it wants you to experience. Another swathe of viewers will be put off because it offends their politics, and sociology and politics are at the core of this movie. Ballard made some observations about human nature, the which Jump and Wheatley relate to the politics of their own generation. The majority of High-Rise's observations are pessimistic to say the least; those overly sensitive to the observations' bleakness, or who can't relate to their context may not find much here.
But if you can immerse yourself into the film's style, enjoy the outstanding performances and cinematography, and enjoy decrypting J.G.Ballard's metaphors through Ben Wheatley and Amy Jump's lens, there is a lot here for you.
My only gripes are 1) that it didn't show at any cinemas within a reasonable distance from me, and 2) having Abba stuck in my head (although vastly reinvented versions appear in the movie, it is the original song which burrows into my ear like a parasitic worm).
