Godspeed, you brave soul, for willingly going to see that. It looks like garbage.
It was... okay. It was not good. But nor was it a complete disaster. More like a moderately sized disaster.
Cast: Did well enough. I'm particularly impressed they found such a wooden actor to play Murphy. Such a magnificently robotic performance. And not in a good way.
Plot: Not a lot of surprises or new themes. They tried to be as topical and satirical as the original, exploring issues such as drones and media bias, but only did it half heartedly. There were several themes they touched upon but failed to explore, presumably to give more time to the action.
Action: Mediocre. You know how Transformers had the problem where you can't tell which gray blob is hitting which other gray blob? Here you have black blobs jumbled together, punctuated by muzzle flashes. Also, some of the tactical decisions made were mind boggling stupid, and not at all convincing for unerring robotic AI.
Other stuff: They put references to the original film, the actors, etc but they felt really shoehorned in. Murphy's human right hand turned out to be completely pointless. The PG13 rating really hurt the film, I'd say. Finally, Murphy has a hot wife.
Conclusion: If, one day not far in the future, you happen to come across this movie on tv while channel surfing and there's nothing else on, I suppose it's worth a watch. But otherwise, stick with the original.