3d Connexion Mouse - Helicopter Mode vs. Camera Mode?

Just bought the SpaceNavigator 3d Connexion mouse and wondering what the pros and cons are between Camera mode and Helicopter mode when flying through very complicated architectural models with lots of long corridors, rooms, subrooms, change of levels etc.

I’ve tried both and they don’t seem that different, but am wondering what the difference is.

Thank you.

Hi Costa - it’s mostly in side to side action- Helicopter tries to keep your head level - camera is much more tippy.