I really like the game. Picked it up on friday after work and played it nearly constantly since then. I'm at the fifth chapter, but I already replayed some of the earlier chapters at higher intensity levels or with different weapons to gain achievements or simply more hearts.
Did you notice, that Pit is apologizing for the long time since the last Kid Icarus game at the start of the first chapter? I like such nice little details.
The dialogs are funny, if you have time to notice them in the heat of the battle.
And I thought the graphics of Resident Evil: Revelations are great, but Kid Icarus is even more impressing in my opinion. It's the great open settings with much to see and on top of that amass of monsters, effects and bullets on the screen at the same time. It makes me wonder, what else the 3DS is capable of.
The online is OK, but I suck too much at it. Dark vs. light is OK, my suckyness is not that important because it is played in teams.
I hope many people have picked up this game, so that I can get more jewels over StreetPass!