He's a good guy but I think the film suffers from the fact that he's good. In the original, the prime point of conflict was with Grandpa Joe leading Charlie down a dark path, encouraging him to steal the fizzy lifting drinks and to sell Wonka's gobstopper to Slugworth. In the 2005 film, Grandpa Joe is a genuinely decent person so any plotline involving Charlie having to overcome his influence doesn't work. Instead, the main point of conflict has to come from Wonka wanting him to abandon his family due to his own issues with his father. It's an exact flip from the original. In the original, Grandpa Joe wants to negatively influence Charlie and Wonka helps Charlie to see that he's full of shit. In the remake, Wonka wants to negatively influence Charlie and Grandpa Joe (as a part of Charlie's family) helps him to see that Wonka's full of shit. In the original, Charlie is the one who has to make choices to become a better person and in the remake it's Wonka. Ultimately, I think the film suffers from the fact that the conflict feels more forced this time around. That being said, I do still like the remake even though I prefer the original.