This game was one of the reasons why I wanted a 3DS in the first place, and it sure didn't disappoint me. The writing in this game was the the best and most hilarious from any game that I have ever played. It was like the fourth wall never existed at all.
The only real complaint I have about this game are the controls. I feel bad for those that are left-handed, but even the controls are meh for righties anyway. They sounded nice on paper, but the execution says otherwise.
And it sucks that Sakurai has no intention of making another sequel. With a game like this, I would LOVE to see another Kid Icarus game in the future, maybe on consoles this time so the controls aren't so meh.
BTW, Hades is one of the best villains ever devised. The guy is literally if Hades from Disney's Hercules was even more of a troll. Plus his character design was the best in the entire game IMO.