I hate bashing on Ozzie companies. ;p And this isn't an evil, unplayable game. My first impression was good, I played it for a bit, expected to play more, had it installed forever, yet every time I fire it up, I close it after 5 minutes.
It's a match 3 game with some 3D tetris elements. The concept is good. The graphics are polished. The music isn't bad. The controls feel annoying at first, but they're actually mostly okay. The problem is, the gameplay doesn't feel satisfying. It expects (and rewards, scorewise) big combos and long term strategy. It also expects you to be fast and responsive. This should theoretically work, in that zen-like way games like this work, but it doesn't. The rythym and pacing feels all off, it feels like the speed jumps from 1,2,3,4,5 to 50 to 150. Once you get into the zone and start planning ahead for later big score combos, it feels like you blink and the game jumps speed, asking you to go for quick, "just don't make a mistake" placement. That may be totally subjective of course, or it could be that the feeling gets exacerbated by the clunky cube placement process. It simply isn't visually always obvious or easy to correctly target the location you want on a constantly rotating cube, which really hurts the game when it picks up speed. People misplace blocks on tetris too, but usually feel it's their fault, here it feels like the cube jumps place three times before you can be sure it's where it should be. By which time the game has jumped two speed gears and you're basically done with.
Again, not a bad game, in theory. I just never feel like playing it long, because it doesn't feel very enjoyable. The thumbs down is just trying to balance a "very positively" reviewed game, with an 80 something metacritic score that few people seem to actually play much (notice the curiously short play times of the majority of the positive reviewers?). So I'd suggest to approach with caution, and at least play the demo first.