Only conditionally recommended. 2

Now I have this little device for a week in usage, My opinion:
- Positive:
Excellent readability, the film I did not use, the numbers are in the disc to detect clean, even in the sun. With film, they seem to me closer, they appear without me 10 15 cm - in front of the disc to be what is good in my opinion. Even at night no aperture should be noted.
Installation is easy to accomplish, the adhesive mat is something big, but it is indeed läßßt trim.
- Negative:
The only thing that appears somewhat correctly in my opinion, is the rate actually exactly the speedometer always according to some (about 3 km / h and 50 km / h and about 5-8 km / h at> 100 km / h ) higher than indicating GPS device. So the advantage you have the speed better in mind.
Speed ​​hardly recognizable, says nothing.
Fuel consumption almost always 10 - 15 L / 100 km too much, the display in my car display is also not 100% but tig to the calculated consumption very close, so the useless from HUD, wonder if I cover it with tape.
For battery, Wasserthemperatur- and called overspeed I can not say anything yet.
What still bothers strongly, is that the device but turns off when you switch off the ignition (unfortunately only the LED) power we do not turn again pulled dweiter (approximately 50 mA) when the ignition. So the device switches back to OFF and then to On.
The connecting cable is quite rigid and verhälnismäßig btreit, but can be laid still.
Conclusion:
I use it more, but only for speed control, everything else can be more or less forgotten. If I knew well in advance that it is not a professional instrument, so I would recommend it not necessarily.
Short Addendum: This review refers to the installation in a VW Golf 5 TDI Bj 09/2007.