Good:
- Grapple Hooks
- Expanded platforming paths
- Reasonable antagonists
- Sibling dynamics
- Driving sections

Not good:
- Worse controls
- Inconsistent/unsatisfying gunplay
- "Secret long lost brother" trope
- Glitch where dramatic and loud combat music kept playing in all cutscenes and on the main menu, kind of ruined the end of the game

Final verdict:
4.5/5, it's still got a ton of stuff to love but I wish the gunplay was closer to what it was in 1-3, then it would be closer to perfect.