I have always had garmins and have always like using them. I am a delivery driver and use this sat nav pretty much everyday for 8 hours a day. I have never had any problems with it and I am not sure of why others are having problems. The visuals on the screen are good and easy to read.
The only gripe that I have is some speed areas have changed in my area including cameras, yet my uptodate maps do not show this. This is only something small as you should be concentrating on the road for then the nav!