Equipment with potential for improvement

I had bought the device, among other things because of the navigation software for the PC.
The thought that I could leave all routes populating the PC and then transferred,
appealed to me very much.
Unfortunately, I discovered that the software is not at all useful!
The directions in the program working online and never really achieve.
Only two times I have had connection, otherwise always got a friendly note
"Please wait, your request is being processed".
Even otherwise, the software provides nothing useful => I think it is a customer bait.

(You can go shopping on the software more features online ha, ha)

Filling stations are displayed by the system after an unrecognizable principle or not.
You are then not always where they are pysikalisch but then also by 500 meters
are displayed in the other direction. => Can make in a big city for trouble.

Targets are not providable with own notes, so one has in a strange city more goals
entered, so the memory is asked what the sausage stand street you wanted again.

-In The last tour to Kiel, I have the eingegebnen target not found, I ended up despite correct
Destination entry with some 1 km away. => Something like this did not work !!!
Addendum: I have all checked again, was my fault, sorry. So work yet!

Addendum after 6 weeks:
So I was traveling abroad, and I must say it has everything works wonderfully.
Everything was found quickly and correctly.
What has particularly pleased me, it does not follow the route indicated times, the system expects
quickly the new route reliably. I had already experienced quite differently in other devices.
Ever driving with the device is quite pleasant. The size is very nice, the holder (it is small) as well.
The only mechanical shortcoming is (as with all devices that I know) the USB socket. How long the well properly
work?
Even the pure battery mode is useful because the battery lasts a long time (approximately 4-6 h).

With further experience I increase my rating from 2 to 4 stars because the device what it actually
do, really reliable power, namely the man or woman certainly lead to the goal!