To be fair, Amazon's decision to combine the ratings of the old MacGuyver and this thing... is dead stupid. But it's not interfering with my rating.
Watched the first episode. It was corny, full of really, really bad acting, and the lifehacks (tm) are mostly things that wouldn't work so well in real life/are completely dumb. Know what? Same went for the original MacGuyver. I loved that, and would still very much like this show if it were *just* poorly acted, corny episodes about ingenuity in the face of nearly insurmountable pressures. The canned plot, the bad acting, the miraculous bits of engineering--those add a bit of charm to the show and flavor it like they flavored its predecessor. Mostly.
But there's more than the MacGuyver-esque storylines and gimmicks, and some of these lines... the way the characters are imagined from their foundations.. I just feel like I'm watching "hipster Macguyver." And on some level I'm really not cool with that. Minus one star for making the stars of the show act like spoiled brats half the time.
Also, if you watched the original series you are clearly willing to suspend disbelief to a large extent. And to forgive corniness and too-convenient plot conventions. But even the most forgiving of viewers has to have a limit, and the first episode of the new MacGuyver surpassed mine in a few places. The gigantic explosions (of colliding vehicles, mostly) are overdone, the way we viewers are supposed to be tech-savvy enough (being the younger generation that the show obviously is trying to cater to) to understand the techno-babble of the gamerchick analyst, while being stupid enough to not realize that her solutions are A: unworkable and B: simplistic, and the way MacGuyver's solutions work without process or logic. Now, there's a certain amount of all of those things in the original show; true. But in places the new show takes it too far over the top, going from "unapologetic and charming" to "patronizing and lazily written." Minus one more star.