i liked the original dredd, this one is a great movie, but not up to my expectations so to speak.
Karl Urban did a great job on this, but certain aspects, the partner, the environment, did not fit for me.
Its also on netflix streaming, if you'd like to try it out first.
forgot to mention, there is one scene that is considered a ulf moment, the interrogation scene. my sub cant go that low so it didnt work for me, but otherwise, its also consistent with a scene i didnt care much for either. a bit graphic so to speak.
other than that, im biased towards rental as well.