This was mentioned in the Mighty No. 9 thread but I figure I might as well make a separate thread.
This game seems to have flown under the radar for a lot of people since, well, the marketing has been terrible, for one thing, but I guess there's also the fact that you won't be seeing it in a store since it's a download-only title.
Having gotten it myself, I guess I'll give some thoughts on it. I think I got my money's worth at $15, at least moreso than the last $15 game I bought (Code of Princess). A lot of people were thinking Megaman ZX before it came out, but it's really more of a Megaman X than anything. No Metroid elements here, just choose your stage and go.
People looking for a old school challenge will want to look elsewhere though, because this game is incredibly easy to beat. Pretty much the only struggle in the game I had was against the last boss. One of the big reasons for its low difficulty is that if you talk to Joule between missions you have a chance of not just being revived after you die, but being restored to full and becoming more powerful through an infinite charge of your lightning (your main attack, usually you have to recharge it after using it for so long).
Basically the only incentive to get good at the game is to get high scores and to beat various associated challenges. The more enemies you defeat without getting hit, the higher the multiplier gets, but if you get hit even a single time you'll lose all your points. If you touch a checkpoint you'll cash in your points but also lose whatever multiplier you've built up. So basically they made the game very easily accessible to everyone but if you want to obsess over it and master it you can do that too. To be fair playing it over and over is the sort of thing lots of people do with this kind of game anyway, but I think it makes the game kinda disappointing in a one-shot playthrough, unlike Megaman 9 or 10 which were both very challenging games even without all those achievements attached.