I would also give 0 Stars ...

The device only makes a solid impression for the price.
If you use it, however, then every day, you realize very quickly that it from cover to cover is immature and will not be developed any further. I have ordered from Pearl, the company buys it probably in a big way from Asia and sells it under the brand here NavGear (just a guess).
I had last time but problems with it:

- Navigon purchased through Google Play and installed maps. Software okay, only crashes the device about once an hour from what it does erdorferlich times just on the highway route refurnish every few tens of km ...
- In general, the device crashes repeatedly even without navigation software etc ...
- Radio reception is not on the existing car and fully functional antenna, even on various adapters, amplifiers, external antennas. Time of reception is, then he goes again!
- Bluetooth connection to the smartphone has indeed always works immediately, but the contacts were always appears only in wild sequence and accept, select, place always has always wanted to work again and sometimes not ...
- The start time is after a fresh install at about 45 - 55 seconds, which is just too long for a radio.
- Even after connection by a specialized company, the device has neatly drawn in standby from the battery, something was wrong because ...
- WLAN has also not always work, apparently did not come the hardware can handle it when Google Play this means of network, because programs are updated
- It will be since the summer despite the many errors no updates available

All in all I can not recommend the article and would not even buy it back.