Graphics are slick, the commentators are hilarious, the weapons are larger than life, the tracks are well designed, controls are satisfing, online has no lag, and the creation and sharing tools are awesome.
There are some bad points however. The AI is brutal, and I mean REALLY BRUTAL. Several times I have been nuked on the final corner and ended up 8th. The 'Elite Racers' or bosses go faster than you aswell. There are no difficulty settings on the story and young games will have a hard time. Load screens drag and the social menu or 'Modspot' can be annoying when you a Spainsh person singing 'las ketchup song' down his mic.
These three points therefore bring the game down to 4 stars. Overall Modnation is a great game and worth the price you pay, especially when you have Kratos doing the moonwalk before a race ;)