Not good, not good at all. The annoying thing is there is some semblance of hope in the very first few mins, and continues on pleasantly diverting enough for 30mins or so. By pleasantly diverting, I mean it at least tries to add something to the irritating tendency it has to riff off the first two films and hope nobody notices.
Never rises above middling in that time, but keeps the eye rolling to a minimum. After that, it just goes full on average to poor, and as a companion to the original and T2, tediously derivative and contrived. Some of the dialogue is just cringeworthy, a lot of it chewed and spat onto the screen by Hamilton, who seems to only exist for a snappy comeback bar one or two moments of the old Sarah Connor coming through.
Mackenzie Davis is alright, but nothing special is gonna come from her character's development - enough with the flashbacks (or flashfowards for us), and while Luna's Rev9 appears lethal, it's a poor man's T-1000, that never seems to carry menace with its apparent lethality. Arnie in the background does what he has to do, but the manner of his T-800's involvement in this timeline is awful, and seriously begs the question of what the creators where smoking when they were tasked with bringing the big man back into the project.
It might seem like I'm being overly hard on it, but I'm a bit fed up with hearing the usual 'best one since T2' which will no doubt feature on the marketing for the home release, so it gets an extra kicking. Disappointing, even with guarded expectations