Summary: Worked well maybe once! After that I couldn't get a satellite lock no matter what. I live in sunny Florida. No reason for it to have such a hard time locking on. Too bad the actual GPS part didn't work well because the graphics, user interface and shape were quite nice.
Summary: The unit started to send error messages when I was loading the state maps off of the CDs. All data was lost (I spent several hours loading the data at that point), and then it wouldn't take any data off of the CDs at all. I ordered a different brand, and am much happier with it.
Summary: I spent $544 bought a Navman iCN 510 last year in June. It only works for about 13 months. The memory card stops working. I called the tech support; they told me that it passed one-year warranty. I have to spend $150+ to ship it back and get it repaired.
Summary: I have a similar iCN 510 unit. Came with 12 month warranty. 13th month the internal rechargeable battery died!!!. Can only run on external power, so every time it loses power i.e. stop for gas, loses all info and settings, and reboots when external power returns.
Summary: The navman does not recognise all postcodes so is completely useless. Need to upgrade new maps. I would gladly give newdolmen 5 stars for their customer service and great attitude to solve the problem. Well done to Linda.
Summary: I bought one of these in 2005 after seeing it in John Lewis. BIG mistake. Having seen a variety of sat nav units in action in various friends' cars I can honestly say that the Navman was the worst unit I have ever experienced.