TOMTOM Has great reviews
TomTom Inc.
http://www.tomtom.com
We are really impressed with how intuitive it is to choose a route and navigate the GO's interface; superior to any other product we've seen.
Great interface with a compact, portable design, well-rounded hardware, and superior voice quality.
Touch screen technology is not very bright in sunlight; need to download maps to MMC/SD card.
By Craig Ellison and Oliver Kaven
What we've always expected from a GPS navigation system is ability to enter a destination address as quickly and efficiently as possible and to receive clear audio and visual instructions promptly. On all counts, the TomTom GO delivers. The GO is the easiest-to-use in-car GPS system we've reviewed yet. Its mobility and relatively low price ($899.95, compared to the $1,200 price tag of our previous Editors' Choice, the Magellan RoadMate 700) also make it a compelling alternative to factory-installed dashboard units.
Read the TomTom GO full review here.
http://www.pcmag.com/article2/0,1759,1683582,00.asp