Like it's good. But it's nowhere near as good as the first half. First off, the water levels in this game are just trash. They control like shit. They're terrible. But there's just a lot of areas where there's one or two small problems that'd be an easy fix, like the game needed one or two more quality pass throughs. Shit that isn't terrible, but just enough a drop in quality to be frustrating, cause you're going from the near perfect, 10/10 first half to some parts that are clearly rushed and unfinished.
Like, I know Super Mario Sunshine has a lot of issues and is clearly the more rushed game. But Super Mario Sunshine has you fight the same boss 5 times in the first hour. You know what you're getting into. Mario Galaxy's first like ten levels are so great that your expectations are too high for the rest of the game.
The only thing I remember about super mario galaxy is that tim rogers used his review of it to tell the world he had testicular cancer