The operation is just as ingenious as simple and could hardly be more intuitive! One has the component not only on the screen, but literally in your hands! Users of CAD systems is the SpaceNavigator gloss drive into the eyes! Certainly there are other 3D mice with which one can work effectively, but it's (at least me) with no other input device so much fun ....
The SpaceNavigator is not in vain so widely and to find in almost any company that has to do with 3D. I use the SN professionally and had him worried me also for private use.
As I said: Mainly CAD users be addressed, which the SN allows work very comfortable. 3ds Max, Catia on to Google Earth is almost all support! And for each application can also define an independent profile. The ability to use PDFs via SpaceNavigator or rumzufliegen in Google Earth is certainly a nice gimmick, but not the purpose of this device ... I have read of angry users that nothing the SpaceNavigator is good because you (directly) use it not as a joystick can. Bad reviews there may be just because of the SpaceNavigator not funktoniert with ner specific version of Blender !!! I seriously wonder whether the real purpose was not misinterpreted! The benefits of SN for visualization programs such as Blender or 3DS Max, is basically questionable and in my opinion, completely specific enough ... I do not see what advantage could bring a 3D mouse in "pure" visualization programs! Such programs are a 3D mouse is hardly effective, because the requirements are completely different easy! But then to miss this product a bad review because a purpose use, I find frankly not fair! The SpaceNavigator is nunmal a tool and not a joystick!
The build quality is great and the price is absolutely reasonable and justified! I have had no problems with this equipment to date and even after hundreds of hours in which I used the SN, there has been no significant problem! Every few months has to be calibrated once, that's it then but also!
Conclusion: For working with a CAD uneingeschrenkte, explicit recommendation to buy !!!!