I liked this, but it was not great. Good but not great. It is definitely unfair to compare it to something as ground-breaking, genre-changing, and visually style-setting as the original 1982 film, but that being said, what you can do with a sequel is write an amazing, complex, elaborate story with complicated and well developed characters, and this does not. It was not as visually arresting either, and although that has a lot to do with the choice to show a lot of daytime scenes rather than the night, dusk and dawn that is traditional for noir, other relatively recent broken-future films like Dredd and even District 9 show that it's not impossible. In less major details, even the soundtrack was a bit lacking; the sweeping melodic score of the original was replaced by much more muted and clunky synth work that added absolutely nothing. All the principal actors did an adequate job, although no one came close to Rutger Hauer's brilliant characterization in the original, and the chick playing the Terminator-lite fixer was a bit flat, and her fight scenes were pretty unremarkable; no one is impressed with roundhouse kicks in 2017, maybe not even in 1982.
So yeah, not exactly a slow leak out of a balloon, but definitely not a game changer either.