(* A German company that was acquired by the US.-American Garmin, was unfortunately set whose production and replaced with Garmin devices).
As far as I know (except Becker) provides for no other device more route alternative function available, a REVO appointed by Becker from me. The device itself is simply great and difficult to surpass, especially if you have previously used a Navigon system. It has a top view, good guidance (with a few minor exceptions, which had also at Navigon), super functions, and perfect craftsmanship.
And now, unfortunately, comes the but:
After 7 days use (France, Monaco and Switzerland-stay) an item purchased from Amazon Warehouse Deals Could not load the system by a loose connection to the mini USB power interface. I was glad that I had a route description in printed form here, because I would have otherwise remained stuck somewhere in France. The cars Navi system was sent back when returning to Amazon.
Then I ordered a new system of Amazon, because I was completely overwhelmed by the functionality of the device, and had casually assumed that the problem could come from the used state of the article.
The unit was urgently needed for my trip to Norway. The Navi arrived on time, but here came the same problem to the fore. This time it had hit me hard because it (there are 81% of the country's forest) in the Norwegian wilderness is difficult without a goal Naviunterstützung reach and I had to stay several times stuck in the middle of nowhere. Totally disappointed I sent the unit after my return back.
CONCLUSION: When the interface would make no problems, I would give the unit 5 stars because it is at least as much value if it would work. Since I had but 2 units tried successively to almost 7.000 km track and have left me during two trips in important moments down both devices, can I help it awarded only one star. The device through the longer trips I had the opportunity to largely: What use to me all the features if I stand there without deep support in the forest and the device's actual work can not meet ... (Here I had a blessing in disguise to try and determine the problem quickly. If I had only used occasionally, I had the problem may be detected too late).
I'm totally desperate and do not know which device should I buy, because the functionality is currently only offered by Becker "3 alternative routes" and if their flagship already (Revo) so unreliable, what is one to make of the cheaper devices? ...
For every good recommendation down I would be very grateful ....