If they stopped the automatic "You're absolutely right!" responses after the model fails to fix something 20 times in a row, then that alone will be worth the upgrade.
Me: "You just burned my house down"
Claude: "You're absolutely right! I burned your house down, I need to revert the previous change and..."
Me: "Now you rebuilt my house with a toilet in the living room"
Claude: "You're absolutely right! I put a toilet in your living room..."
Me: "You just burned my house down"
Claude: "You're absolutely right! I burned your house down, I need to revert the previous change and..."
Me: "Now you rebuilt my house with a toilet in the living room"
Claude: "You're absolutely right! I put a toilet in your living room..."
Etc.