I have been looking forward to this one for a while, after hearing about it over a year ago. My first few moments with it were underwhelming. The single player story mode is slow and dull. It really is. Which I will elaborate on in a bit.
However, playing online in the battle modes is a whole different ball game. This feels like a game that has been designed from the ground up to be competitive and unlike games such as Puyo Puyo, Super Puzzle Fighter, etc it doesn't seem to rely on powerups to disadvantage your opponent, at least in its purest form.
Matches (upto 4 players) are super tense and so satisfying when you win. They are fast and frantic and with everyone getting the same patterns to play with, it comes purely down to your skill levels, how quickly you can read a board and react to it. It is a complete joy here.
Now my biggest issue and this goes to a lot of puzzle games. YOU DO NOT NEED A STORY MODE!
Simple as that, if your game excels in one particular thing, then just roll with that. There is no need to add a shit story that can be completely ignored. If you want to keep a single player experience, for practice or whatever, then just throw levels at me one after the other, it doesn't need cut-scenes inbetween to break things up.
Overall this is a cracking experience once you get past the dull and uninspired single player shite.