Technology:
The TrackMan stands firmly on the table, his right hand is full on the partial plan. The mouse buttons and the trackball are exactly where your fingers expect -> Intuitive operation is guaranteed. The keys have the usual micro-switch, the ball movements are optically scanned. The ball is in their own inner housing on three points that allow easy rolling movement and not wear out even after a long time. This inner housing is latched securely in the TrackMan, some play had with me but (just perceptible), so that the movements of the ball sometimes does not exactly end up where you want to lead them, but one or two pixels next to it are - therefore only 4 Rating stars. This seems to be a modern production problem as it occurred in three equal new track Mans, in an older model but not. The game is easy to fix after opening the track Mans (4 Phillips screws on bottom) by pinching of a piece of paper.
Service:
Intuitive operation, even if the transition from the mouse at first seems unusual. The principle has but realized after a few minutes, after a few days you would no longer be the new way of working to miss. At unchanged driver settings the ball movements are sometimes not as accurate as before with the mouse. With finer control and simultaneously enhancing the pointer acceleration is fine but conducting no longer a problem.
Background of the conversion:
After many mouse years (personally and professionally), I had increasingly trouble: the right wrist moves the mouse pointer on the table top and is hard and shiny, my right shoulder and upper arm pain (micro movements), after a few hours I hampele front of the table to find back and forth to a different seating position, etc.
Three months ago, I have found me a used private TrackMan. First I had to change myself, because all previous hand movements are now done with the thumb. After one hour, has it's, after 1-2 days it has become quite normal, you work flow smoothly. Amazing: After 1-2 weeks, the symptoms are gone.
Now I have worried for my other computer as a TrackMan (new) and had already infected my wife who wants to have such a part now.
