Finally did some testride with the unit.
Works quite good, accurate, display is readable enough for me. But cannot put it at a good angle on my bike, but will be better on my other bike.
Counts the amount of meters to where I have to change on a junction etc... very handy, displays the road clearly. Although, wasn't that sunny yesterday.
Anyway, I let it create a random route to follow. Started riding, but after a while he did always stop navigating and redirecting me to a certain location. I thought: "oh crap" and got back to home... Then I realized that I let him create a random route from a total different starting point than where I started my ride. *big facepalm*
Will do another test ride this week later on for this random route option