Just beat the game on Silver diffuculty, and I must say I think the game is better than the reviews are giving it credit for. This game is actually pretty well made. Graphics are nice (aside from a problem of overused textures on the ground), and the models for the characters are very nice. The gameplay is surprisingly good. I used the Dual Stick control setup, and found that the ground missions were actually pretty fun. Namco did a good job with the Arwing stuff, too. Challenging, occasionally frustrating, but overall very much in the spirit of the series. I really felt like I was playing a Starfox game.
The music is nice, also, with some very good orchestral remixes of the traditional Starfox theme, and some good battle music. The Starwolf Team music in particular is very nice. The only real complaint I have with the game is Fox's voice. Everyone else sounds okay (I'd even go so far as to say Falco's voice is good), but Fox's is too deep, and doesn't sound anything like the voice he has in Adventures, Smash Bros. Melee or even Starfox 64. If they'd gotten the guy from Adventures I'd have been much happier.
Plus, Fox is hot. Nuff said.
Other than that, the game is a lot of fun, single player. I haven't tried the multiplayer yet, but I'll correct that soon enough I think. I'd give the game a 8.5 out of 10.