Summary: The GPS is really good, for the first two years. Then, it slows down a lot and after four years is useless. And good luck trying to get an update (you are better of-forgetting about it) or Harman-Kardon to even answer your question or even getting back to you with any request.
Summary: Like others I almost didn't buy this device because of others' bad reviews. I had a feeling that the people giving bad reviews were either luddites, technologically challenged, or were expecting way too much from this device. I was right.
Very Bad Service and Easy to Have Quality Problem!
Mr. Xianghong Wu, Amazon
20 January 2009
Summary: It is a very bad GPS. First, it can not locate the best traffic route and alway let you go much far away. Second, it is very easy to die, such as no signal on the street at all or keep locking and can not open at all. Third, their service is very bad. No phone was be received when you call them.
Summary: I bought this GPS because it does what my girlfriend's doesn't, play music from the SD card while navigating. This was something I required due to not being able to hear the GPS over the radio. So, I just plug the head phone jack into my car stereo to reroute the sound.
Summary: Paid around 160 for this. Pros : Good screen size, Media and Traffic capabilities Cons : Couldnt get map icons to work No user manual at all in the pkg(couldnt find it online too) Screen too sensitive to touches (double clicks very often) Froze once (had to press the hard reset button) in the first...
Summary: I bought two GPS from amazon one for myself and one for my friend. After opening package i followed the process suggested by Harmon Kardon to start the GPS for the first time. First GPS froze while initial setup only. Even after several resets it never completed initial setup.
Summary: The Harman/Kardon gps 510NA is a GPS that gets the job done and more. The navigation is really intuitive and easy to use. I live in the Midwest and seems to me that I get a GPS lock really quickly even from a cold start.
Summary: Picked this up on a Gold Box deal for $200. My wife was especially interested in the MP3 capabilities, but unless you happen to have a stereo with RCA input jacks, the only way you can listen to the songs you put on it would be using the little speaker on the GPS.
Summary: Have been using it for a little over 2 weeks now and the unit has performed extremely well. Pros: - Locks signal instantly - GPS navigation seems accurate and route/re-route calculations are fast. - Works great as an Audio/Video portable player.